Up arrow and down arrow are not forward/backwards relative to view after using A and D.

[BillyBag2]

Using the demo page on a Mac running in google chrome.
After rotating using the A key. For example 45-90 degrees to the left. The up and down keys travel in the original direction, not forward/backwards relative to the new orientation.

Note that the left and right keys appear to strife correctly, ie perpendicular to the current orientation.

[WilliamBagshaw-imd]

I have tried this on a windows PC with the default image and it works fine. I will return to the Mac later and try it again. I was using my own splat data so this may be related in some way?

[WilliamBagshaw-imd]

I downloaded the data I was using and same issue on the PC. Are you interested in the file? Not sure best way to provide it.