Hello ,
The RTX 3050 should support Path Tracer. Please make sure that Windows is up-to-date and that inside Twinmotion's Preferences > Graphics Hardware Support setting that DirectX12 is enabled.
If you are having issues, please contact support at https://twinmotionhelp.epicgames.com/s/case-community-page and include a copy of your computer's DxDiag report and copy of your Twinmotion.log file (Where to find Twinmotion .log file).
Best,
Raghib