I am having an issue with DragonAPI. When I load a world only my HUD is visible over a black screen and I see a GL error spammed in the log. I initially assumed it was another mod causing it, but it still happens with nothing but DragonAPI installed. Here is a log: https://pastebin.com/SgbBSfwN It was from loading a world and then going back to the menu after a bit. I was using DragonAPI V27c.
I have updated to V27d and the issue remains. After looking around a bit it appears to be the same problem as 2315 in the issue tracker. Turning off the forge splash screen as mentioned in one of the closed issues stops it.