After the new update Appo has 0 stacks of operation knightfall, while his unique says he should get 3 stacks if the leader is Lord Vader and all allies are DC clone troopers
Ideas
I have found the problem in the code
https://swgoh.gg/units/APPO/ability/uniqueability_appo01/7/
Context#9 and #10 on Vader's Fist is finding all who are either a DS_CT or Lord Vader and giving them a tag darkside_CT_or_lv_marker, then checking the amount of units on the field that do not have that tag.
The endless_ranks handler is then looking to execute ONLY if Context 10 was >0, AKA if there is a non-LV or DS Clone trooper unit available.
This needs URGENTLY fixing and compensation given to those who can't clear the Knightfall battle because of it.
They will fix it when the knightfall event ends