Game plays from launcher however in editor tres shows as nil and can't run from editor

[daddlebock]

Godot Version

v4.2.2.stable.mono.offcial [15073afe3]

Question

I have been working in the engine for a while and suddenly all of my custom resources stored as .tres files are displayed as nil within the editor. I can still run the game via the launcher however if I open it to edit they show as nil in the editor and hitting run in there crashes wherever a non nil resource is expected- also after viewing a .tres in the editor and running it the file itself is overwritten with nil.

[daddlebock]

Found the solution on the godot github here thanks to KarmyDev:

It appears I found the issue. Its kind of my fault and Microsoft’s, basically replaces every constant value with whatever its inside this Property. Hence why adding any own constant breaks Godot - because it removes anything else thats already set.

In order to add any own constants, you have to add $(DefineConstants); before your constant inside Property.

I think the git covers this but it was not just effecting my custom resources but all exported items in the editor