Hello [mention removed]
Thank you for your response!
I’d like to reiterate our latest observation: the issue is reproducible on all types of devices, including high-end GPUs such as the RTX 4090, when using Low or Medium Global Illumination settings.
It’s also important to note that we do not override any default engine scalability settings. We’re using the defaults defined in BaseScalability.ini, where for [GlobalIlluminationQuality[Content removed] as expected.
The scalability settings themselves seem to be working correctly. However, the issue arises in the following scenario:
- Using Global illumination settings as Low or Medium.
- Entering the Play mode multiple times (mostly issue occurred at the very first time), the Global Illumination can randomly become corrupted (i.e., the scene appears much darker).
- If we change the Global Illumination quality during runtime—for example, switch from Low to Epic, and then back to Low—the lighting returns to its expected state.
Please let us know if there are additional diagnostics or settings we should investigate to help figure this out.
Please find attached the video of described scenario.
Best regards,
Harut