diff --git a/.oca/oca-port/blacklist/jsonifier.json b/.oca/oca-port/blacklist/jsonifier.json
new file mode 100644
index 00000000000..9a2622bcf1a
--- /dev/null
+++ b/.oca/oca-port/blacklist/jsonifier.json
@@ -0,0 +1,5 @@
+{
+  "pull_requests": {
+    "OCA/server-tools#2762": "already ported"
+  }
+}
diff --git a/jsonifier/models/ir_exports.py b/jsonifier/models/ir_exports.py
index c4cca1b7ec6..6e621d651aa 100644
--- a/jsonifier/models/ir_exports.py
+++ b/jsonifier/models/ir_exports.py
@@ -109,7 +109,8 @@ def get_json_parser(self):
                 if line.target:
                     names = line.target.split("/")
                 function = line.instance_method_name
-                options = {"resolver": line.resolver_id, "function": function}
+                # resolver must be passed as ID to avoid cache issues
+                options = {"resolver": line.resolver_id.id, "function": function}
                 update_dict(dict_parser, names, options)
             lang_parsers[lang] = convert_dict(dict_parser)
         if list(lang_parsers.keys()) == [False]:
@@ -117,7 +118,7 @@ def get_json_parser(self):
         else:
             parser["langs"] = lang_parsers
         if self.global_resolver_id:
-            parser["resolver"] = self.global_resolver_id
+            parser["resolver"] = self.global_resolver_id.id
         if self.language_agnostic:
             parser["language_agnostic"] = self.language_agnostic
         return parser
diff --git a/jsonifier/models/models.py b/jsonifier/models/models.py
index 44582f2c80d..55ae11cdf7e 100644
--- a/jsonifier/models/models.py
+++ b/jsonifier/models/models.py
@@ -71,14 +71,19 @@ def _add_json_key(self, values, json_key, value):
     def _jsonify_record(self, parser, rec, root):
         """JSONify one record (rec). Private function called by jsonify."""
         strict = self.env.context.get("jsonify_record_strict", False)
-        for field in parser:
-            field_dict, subparser = rec.__parse_field(field)
+        for field_key in parser:
+            field_dict, subparser = rec.__parse_field(field_key)
+            function = field_dict.get("function")
             try:
                 self._jsonify_record_validate_field(rec, field_dict, strict)
             except SwallableException:
-                continue
+                if not function:
+                    # If we have a function we can use it to get the value
+                    # even if the field is not available.
+                    # If not, well there's nothing we can do.
+                    continue
             json_key = field_dict.get("target", field_dict["name"])
-            if field_dict.get("function"):
+            if function:
                 try:
                     value = self._jsonify_record_handle_function(
                         rec, field_dict, strict
@@ -97,6 +102,9 @@ def _jsonify_record(self, parser, rec, root):
                 value = rec._jsonify_value(field, rec[field.name])
                 resolver = field_dict.get("resolver")
                 if resolver:
+                    if isinstance(resolver, int):
+                        # cached versions of the parser are stored as integer
+                        resolver = self.env["ir.exports.resolver"].browse(resolver)
                     value, json_key = self._jsonify_record_handle_resolver(
                         rec, field, resolver, json_key
                     )
@@ -116,15 +124,15 @@ def _jsonify_record_validate_field(self, rec, field_dict, strict):
             if strict:
                 # let it fail
                 rec._fields[field_name]  # pylint: disable=pointless-statement
-            if not tools.config["test_enable"]:
-                # If running live, log proper error
-                # so that techies can track it down
-                _logger.error(
-                    "%(model)s.%(fname)s not available",
-                    {"model": self._name, "fname": field_name},
-                )
+            else:
+                if not tools.config["test_enable"]:
+                    # If running live, log proper error
+                    # so that techies can track it down
+                    _logger.warning(
+                        "%(model)s.%(fname)s not available",
+                        {"model": self._name, "fname": field_name},
+                    )
                 raise SwallableException()
-
         return True
 
     def _jsonify_record_handle_function(self, rec, field_dict, strict):
@@ -203,16 +211,20 @@ def jsonify(self, parser, one=False, with_fieldname=False):
         if isinstance(parser, list):
             parser = convert_simple_to_full_parser(parser)
         resolver = parser.get("resolver")
-
+        if isinstance(resolver, int):
+            # cached versions of the parser are stored as integer
+            resolver = self.env["ir.exports.resolver"].browse(resolver)
         results = [{} for record in self]
         parsers = {False: parser["fields"]} if "fields" in parser else parser["langs"]
         for lang in parsers:
             translate = lang or parser.get("language_agnostic")
-            records = self.with_context(lang=lang) if translate else self
-            records = (
-                records.with_context(with_fieldname=True) if with_fieldname else records
-            )
-            for record, json in zip(records, results, strict=True):
+            new_ctx = {}
+            if translate:
+                new_ctx["lang"] = lang
+            if with_fieldname:
+                new_ctx["with_fieldname"] = True
+            records = self.with_context(**new_ctx) if new_ctx else self
+            for record, json in zip(records, results, strict=False):
                 self._jsonify_record(parsers[lang], record, json)
 
         if resolver:
diff --git a/jsonifier/tests/test_get_parser.py b/jsonifier/tests/test_get_parser.py
index 364e9ac2105..0f587ec5a48 100644
--- a/jsonifier/tests/test_get_parser.py
+++ b/jsonifier/tests/test_get_parser.py
@@ -3,7 +3,6 @@
 # Simone Orsi <simahawk@gmail.com>
 # License LGPL-3.0 or later (http://www.gnu.org/licenses/lgpl).
 
-from unittest import mock
 
 from odoo import tools
 from odoo.exceptions import UserError
@@ -214,6 +213,51 @@ def test_json_export(self):
             "_fieldname_partner_latitude": "Geo Latitude",
             "create_date": "2019-10-31T14:39:49",
         }
+        expected_json_with_fieldname = {
+            "_fieldname_lang": "Language",
+            "lang": "en_US",
+            "_fieldname_comment": "Notes",
+            "comment": None,
+            "_fieldname_partner_latitude": "Geo Latitude",
+            "_fieldname_name": "Name",
+            "name": "Akretion",
+            "_fieldname_color": "Color Index",
+            "color": 0,
+            "_fieldname_children": "Contact",
+            "children": [
+                {
+                    "_fieldname_children": "Contact",
+                    "children": [],
+                    "_fieldname_email": "Email",
+                    "email": None,
+                    "_fieldname_country": "Country",
+                    "country": {
+                        "_fieldname_code": "Country Code",
+                        "code": "FR",
+                        "_fieldname_name": "Country Name",
+                        "name": "France",
+                    },
+                    "_fieldname_name": "Name",
+                    "name": "Sebatien Beau",
+                    "_fieldname_id": "ID",
+                    "id": self.partner.child_ids.id,
+                }
+            ],
+            "_fieldname_country": "Country",
+            "country": {
+                "_fieldname_code": "Country Code",
+                "code": "FR",
+                "_fieldname_name": "Country Name",
+                "name": "France",
+            },
+            "_fieldname_active": "Active",
+            "active": True,
+            "_fieldname_category_id": "Tags",
+            "category_id": [{"_fieldname_name": "Name", "name": "Inovator"}],
+            "_fieldname_create_date": "Created on",
+            "create_date": "2019-10-31T14:39:49",
+            "partner_latitude": 0.0,
+        }
         json_partner = self.partner.jsonify(parser)
         self.assertDictEqual(json_partner[0], expected_json)
         json_partner_with_fieldname = self.partner.jsonify(
@@ -252,10 +296,12 @@ def test_json_export_callable_parser(self):
             # callable subparser
             ("name", lambda rec, fname: rec[fname] + " rocks!"),
             ("name:custom", "jsonify_custom"),
+            ("unknown_field", lambda rec, fname: "yeah again!"),
         ]
         expected_json = {
             "name": "Akretion rocks!",
             "custom": "yeah!",
+            "unknown_field": "yeah again!",
         }
         json_partner = self.partner.jsonify(parser)
         self.assertDictEqual(json_partner[0], expected_json)
@@ -378,24 +424,25 @@ def test_bad_parsers_strict(self):
     def test_bad_parsers_fail_gracefully(self):
         rec = self.category
 
-        logger_patch_path = "odoo.addons.jsonifier.models.models._logger.error"
-
-        # logging is disabled when testing as it's useless and makes build fail.
+        # logging is disabled when testing as it makes too much noise
         tools.config["test_enable"] = False
 
+        logger_name = "odoo.addons.jsonifier.models.models"
         bad_field_name = ["Name"]
-        with mock.patch(logger_patch_path) as mocked_logger:
+        with self.assertLogs(logger=logger_name, level="WARNING") as capt:
             rec.jsonify(bad_field_name, one=True)
-            mocked_logger.assert_called()
+            self.assertIn("res.partner.category.Name not availabl", capt.output[0])
 
         bad_function_name = {"fields": [{"name": "name", "function": "notafunction"}]}
-        with mock.patch(logger_patch_path) as mocked_logger:
+        with self.assertLogs(logger=logger_name, level="WARNING") as capt:
             rec.jsonify(bad_function_name, one=True)
-            mocked_logger.assert_called()
+            self.assertIn(
+                "res.partner.category.notafunction not available", capt.output[0]
+            )
 
         bad_subparser = {"fields": [({"name": "name"}, [{"name": "subparser_name"}])]}
-        with mock.patch(logger_patch_path) as mocked_logger:
+        with self.assertLogs(logger=logger_name, level="WARNING") as capt:
             rec.jsonify(bad_subparser, one=True)
-            mocked_logger.assert_called()
+            self.assertIn("res.partner.category.name not relational", capt.output[0])
 
         tools.config["test_enable"] = True