What happened?
Would be nice to fix this long string name for their proper name.

Minecraft Version: 1.20.1
Ice and Fire version: iceandfire 2.1.13-1.20.1+build.beta-2
JER: JustEnoughResources-1.20.1-1.4.0.247
JEI: jei-1.20.1-forge-15.3.0.4

I had the same issue with the Tailor from Sewing Kit and I was just able to solve this by adding the following entry to the en_us.json file via a resource pack:

// assets/sewingkit/lang/en_us.json
{
   "entity.minecraft.villager.tailor": "Tailor"
}

This entry was not in the the file originally, but I noticed such an entry was present in other modded professions which were displaying correctly.

May i add mod to this thread? similiar situation is with AE2 and Villagers Plus

Minecraft Version 1.20.1
Forge: 47.3.0
JEI: jei-1.20.1-forge-15.3.0.7
JER: JustEnoughResources-1.20.1-1.4.0.247.jar
AE2: appliedenergistics2-forge-15.2.3
Villager Plus: VillagersPlus_3.1_(FORGE)_for_1.20.1