Arelith

Description of Bug Experienced:
Be lvl 28 fathomless warlock with epic eldritch summon Unknown following me. I went through a cave from the surface server to the Underdark server. After switching to the new server I have an Ultroloth Commander instead.

Expected Result:
T6 unknown summon doesn't turn into an Ultroloth Commander.

Actual Result:
T6 Unknown summon becomes Ultroloth Commander

Screenshot(s)

https://imgur.com/a/kDd45gB

That's a common problem stricted by the transportation between servers. Your former summon was lost, together with the ward you cast on them, and a new summon spawns without epic caster level bonus and other strengths.