Summary
Minecraft opens as usual however FML Early Loading Progress stays open alongside Minecraft and will only close once the game is closed.
It also seems that once I have closed the game after playing it, the Minecraft launcher opens and says the game crashed. This is likely because exiting the game closes FML Early Loading Progress and makes it think the game didn't launch fully.
Steps to reproduce
Launch the game onto the main menu and you should be able to see FML Early Loading Progress in the taskbar.
Version of Forge
Happens on all versions from 31.1.51 to the most recent version, 31.2.20 as of writing.
Current bug behavior
FML Early Loading Progress doesn't close, when it should.
Screenshots
Both are open while loading
Both still open once loaded