The WorldBosses.lua should be updated on row 62 and 63 to read:
[2362] = { quest=56057, expansion=7, level=120 }, -- Ulmath, the Soulbinder
[2363] = { quest=56056, expansion=7, level=120 }, -- Wekemara

I have tested for Ulmath and it seems to work. I believe I have the quest ID correct for Wekemara as well.

Thank you!