UQuery doesn't work in Games using UIElements

[plasmatank]

UQuery on UIElements.VisualElement will cause error like this:
Unable to compile the code. Evaluator's last output was: (2,25): error CS0584: Internal compiler error: Unexpected error when loading type 'UnityEngine.UIElements.UQueryBuilder<T>'
But the single captured Q method works well. I checked unstripped code found that some methods under UQueryBuilder failed to unstrip, maybe that's the cause?

[SamboyCoding]

What?

[ds5678]

It sounds like you're using a mod loader. Is that correct?