I am experiencing the following issue with 5.0.9. I had used 5.0.3 for the development of my previous project (Yet Another Hero Story) and I kept the 5.0.3 version up to the point of the game release.
Now I am working on a different project and I decided to start it in 5.0.9 right from the start. Everything works fine, except the save thumbnails.
Whenever I save, I get a black thumbnail. FYI I used the exact same menu scene as in my previous project. I have even made a test with my previous game and it also shows a black thumbnail despite the fact that it was just fine with 5.0.3.
Is this something that someone else has experienced with 5.0.9. I am a mac user and currently using Mojave, so it's definitely not an OS thing (I was using the same OS with 5.0.3)
Also, I am experiencing the same problem even when I use custom thumbnails from the scene properties menu.
Some help would really be appreciated! Thanks!