Minecraft Version

1.12.2

Forge Version

14.23.5.2855

Related Mods Version

Forgelin: 1.8.4
Future MC: 0.2.7.3

Server Software

https://github.com/MohistMC/Mohist

How to reproduce

Simply right click on a Villager and no GUI will be displayed.

If you think this issue is related to the server software, please let me know.
I will post the same issue to MohistMC/Mohist repo.

Thanks for your help in advance!
Looking forward to your reply.