Describe the bug you're experiencing

After getting Patbox/brewery#4 reported and testing for myself, I found out that Connectivity doesn't apply polymer compatibily patch correctly, breaking it's funtionality.

Seems to be caused by mixin being not registered here https://github.com/someaddons/connectivity/blob/1.19.1fabric/src/main/resources/connectivity.mixins.json

Reproducability

Install Brewery (https://github.com/Patbox/brewery) and connectivity.
Try creating brewery barrel (singleplayer, but issue could still happen on multi).

Mod up to date

• Before submitting this issue I updated to the newest version and reproduced it

Minecraft version

1.19

Modloader version

Fabric

Logs

No direct logs caused by this issue, it fails silently

ye was indeed missing something, fixed in 3.4 should work now

Thanks for fixing and just so you know, with 1.19.4/whatever next release that patch won't be required, asthis bug should be fixed in vanilla. https://bugs.mojang.com/browse/MC-258163

Checked the compat code and it won't work. Since you check with contains, it matches any SMultiBlockChangePacketMixin in a string, making it also not apply for polymer. You should use endsWith

fixed