`pixi-build-rattler-build` 0.3.4 breaks Pixi GUI build

[Hofer-Julian]

When building Pixi GUI with pixi-build-rattler-build 0.3.4 on pixi-build-backend-channel, everything seems to compile just fine, but when you then run it you are presented with a view like this one:

If it's build with 0.3.3, everything works just fine. We should figure out what caused this regression

[baszalmstra]

I have tried using both 0.3.3 and 0.3.4 but at least on Windows I get the same result..