[BUG] Forwards conversion from 1.21.1 to 1.21.8 crashes

[zane108231]

[CoryBorek]

Do you have the full error that was printed at the bottom? That will tell us where it is.

[DoYouKnowMyNamePlz]

Do you have the full error that was printed at the bottom? That will tell us where it is.

Hey, pretty sure I am having the same error. I tried 1.20.5->1.21.7 convert with the same issue here is the pastebin https://pastes.io/converting