TL;DR - add memory to the Java settings in the instance and it should fix it
So I came here because ever since I've updated to the 1.17 / Java 17 launcher combo, I've been getting this error whenever I'd leave the game instance of a default setup (latest stable vanilla),
After a while of either trying different options, I was going through this issue's comments and possible resolutions when I came across a link to an old MC version saying you need to change the memory settings but I was confused because I was using the default settings and expected it to work with my current version of the game - turns out 2Gb XMS memory allocation is not enough for my version and increasing to 4Gb resolved my issue so you might want to try it as well...
Jockeril
TL;DR - add memory to the Java settings in the instance and it should fix it
So I came here because ever since I've updated to the 1.17 / Java 17 launcher combo, I've been getting this error whenever I'd leave the game instance of a default setup (latest stable vanilla),
After a while of either trying different options, I was going through this issue's comments and possible resolutions when I came across a link to an old MC version saying you need to change the memory settings but I was confused because I was using the default settings and expected it to work with my current version of the game - turns out 2Gb XMS memory allocation is not enough for my version and increasing to 4Gb resolved my issue so you might want to try it as well...
Find my setup, according to F3 screen of MC :
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