I think that's a problem with the game itself, not a problem with the mod
I'm getting the same error message, but can still play the game just fine
you dont get stuck at Confirming Updates 99.29%?
well without the mod can play just fine,usually after every update
we download new mod,
1.) open the game, confirming updates to 100%
2.) downloading additional new update to 100%,
3.) then then usually for me the game closes on its own
4.) when i reopen, just need to wait a shortwhile till confirming updates gets to 100%
5.) then Continue Button will appear and can play like usual,
This time the problem is in step 4, the completion gets to 99.29% and stuck there