When clicking on the video settings tab in options with Optifine installed, the game displays "Saving world..." upon a dirt background, which occurs whether or not you're actually in a singleplayer world, followed by a crash. The issue persisted even after deleting my options files in the .minecraft folder. I haven't tested the possibility of crashes for other buttons, but it's a peculiar issue nonetheless.
When clicking on the video settings tab in options with Optifine installed, the game displays "Saving world..." upon a dirt background, which occurs whether or not you're actually in a singleplayer world, followed by a crash. The issue persisted even after deleting my options files in the .minecraft folder. I haven't tested the possibility of crashes for other buttons, but it's a peculiar issue nonetheless.
Optifine 1.14 F4 & F5 Forge 1.14.4 28.2.0
Crash log: https://pastebin.com/SQ74PHnV