I can confirm that for the Kasita Theme (but not for the Silver Theme).I tested all Themes, and Mira, Kasita, Dark Arcane and the Phesteus (or however your write that) are funky looking.
Ticket for the Units VFX issue
By the looks of it, the extra weird looking highlights are probably the VFX (and the flat planes they appear on)
Yes those are the VFX planes, it's a very common issue with edge highlighting :) I'm not sure if there's much we can do about it but I'll ask.
Just wanted to say I encountered this, too.
Note this ticket is a duplicate of
which has a comprehensive list of affected highlights. It seems a lot of them have recently broken. Perhaps due to the Unity update?
Please do not merge tickets as they both have linked User Echo tickets, one is public and other is private.
Customer support service by UserEcho