[Issue]NPE error from firing squadron external weapons

[wolfstormash]

Brief Description *

seems similar to this issue #5569

might also be related to
#2847

Shooting LAA missiles with squadrons in megamek causes a NPE error.

Shootingspace save is saved during shooting prior to the bug, test2 is a save after encountering the error

also doesn't seem like my logs properly saved? but I added them anyways. (Working logs added in a new comment below)

3. Steps to Reproduce

Turn on squadrons
Shoot LAA Missile

Attach Files

shootingspace.sav.gz

test2.sav.gz

logs - Copy.zip

Severity *

Critical (Game-breaking/Crash): The game crashes or a core feature (like saving, loading, or network connection) is completely unusable.

MegaMek Suite Version *

MegaMek v0.50.0

Operating System *

Windows 10

Java Version *

 Java Vendor: Eclipse Adoptium     Java Version: 17.0.12

Final Verification

• I confirm this is a single, unique issue that hasn't been reported before
• I have included all necessary information and files to help reproduce this issue
• I have asked on MegaMek Discord about this issue
• I have confirmed this issue is being opened on the correct repository: MegaMek, MegaMekLab, or MekHQ

[HammerGS]

There is nothing I can see in the logs

[wolfstormash]

I’ll see if I can recreate the bug again later tonight for logs(if it lets me connect as everyone else in the same game) but we had it happen twice in a row, first time we thought it was b/c of our longtom cannons but it still happened the second time without using them, someone suggested it might be the LAA and squadrons but I was able to use them VS princess in a quick test.

oh, and skipping through the remaining units after shooting the LAA on the first save did not work, it hanged at the end and never showed a report.

[wolfstormash]

logs - Copy.zip

that actually didn't take very long to do, hopefully the logs saved properly that time.

and I can see this in the megamek log file java.lang.NullPointerException: Cannot invoke "megamek.common.Mounted.setNWeapons(int)" because the return value of "megamek.common.FighterSquadron.getEquipment(int)" is null