This mod is great! But when I use the mod for 1.15.2 to join 1.15.2 and 1.14.4 servers, some of my shulker boxes especially the dyed ones in my inventory are lost. Please fix this bug, thanks!

I can't reproduce this, maybe it's related to the items inside your shulker boxes? Could you share which items are inside an affected shulker box?

It also might help to mention which version of multiconnect this issue occured on in this case

Can't reproduce and got no response, closing. Please let me know if this is still an issue.