Hi @Amanda.Schade ,
I have continued doing tests and I have noticed a certain scenario (may be more, as there are tons of combinations).
For a 100% success scenario, it seems related with any project created with a different version than 5.1 (As I couldn’t reproduce it creating the project with 5.1 version). I have recorded this with a 5.0 project, but if I noticed this error before, it’s because I also tested older projects, made with UE4.27 for example:
(If created with 5.0, but opened later with 5.1 and saving the changes, to ‘convert’ the project to 5.1, the error will persist anyway. This is also shown in the recorded video)
Steps summary:
- Create a 5.0 project
- Open a default map (it may work with other maps too, not tested)
- Delete all except the Floor mesh (it may work without deleting anything, not tested)
- Add a Directional Light (it probably happens with any other lighting, not tested)
- Add tons of cubes (something like 250)
- Enable Ray tracing hardware and shadows in project settings
- Close & Save, & open with UE5.2
- Bonus bug: before destroying the lighting, go away with the camera. RT shadows will dissapear with the distance. Ok, go close again.
- Duplicate some of the cubes, to reach something like 280 cubes or more (this seems to be near the critical number of actors, or of static meshes, not sure)
- Lighting will be destroyed
Perhaps it may be related with other raytracing shadows bugs, if something is broken from ‘the base’. Despite of the tittle of the post, these are bugs 100%. The question was rhetoric:
Thanks!