When Head Index is installed with Egg Tab, the Egg Tab title in the creative menu loses its localized text.

Normally it says Spawn Eggs, but with HeadIndex installed it gives its non-localized name itemGroup.eggtab.egg_group.

Mods Installed:

• eggtab-2.1.0+1.16-fabric
• fabric-api-0.37.2+1.17
• headindex-1.0.2

If the issue lies with Egg Tab instead, please do let me know.

Thank you!

Could you try adding this mod to your mods folder? Let me know if this works.

Yup, thank you that fixed it!