POE 2 -10%res twice after Act 3 End

My English is not good so...i'm sry)
After i've kill Doryani black screen and i instantly teleport in Act 1 cruel, i start completing and clearing Act 1 cruel, kill boss with +10% cold resistance. After it, i saw quest in Act 3 (talk to Doryani).
He told me to go in Telepost in Past (big orange teleport in middle of city in Act 3).
After i use it i AGAIN teleport in Act 1 cruel, go to city and saw that i got -10% resists again.

Re log it.
didnt help...
So i stand in city in Act 1 cruel, naked with -30 fire, -20 cold and -30 light resistances.
In same situation, my friend, naked got -20 fire, -10 cold, and -20 light resistances.

Looks like HUGE bug...

Yep bug still exists. I don't know what sequence I did, I ported all over the place multiple times.

I got -10 all res, twice. I noticed because I recorded my resists before and after. I set up my gear in Act 3 normal, forgetting that it doesn't show the Act 4 penalty yet.

73/75/47 - Act 3 resists after fixing gear (cold overcapped to 83)
63/73/37 - Act 4 resists fighting monsters (expected penalty)
53/63/27 - Act 4 resists in town (unexpected additional penalty)
-30/-30/-30 - Act 4 town naked just starting Cruel (should be -20 all thanks to Normal resist quests)


Edit: after sleeping on this -30 sounded correct, but I was forgetting A1 doesn't have a resistance penalty. So you have 3 penalties by A4, and +10 from the quest. -20 all. It was a mindfuck and a half to figure out, but methodically listing everything below eventually led me back to the correct conclusion. I.e. there's a bug:

A1 town +10all = 93/103/67 correct
A2 town 0all = 83/93/57 correct
A3 town (present) -10all = 73/83/47 correct
A3 town (past) -10all = 73/83/47 correct
Riverbank -20all = 63/73/37 correct
A4 town -30all = 53/63/27 incorrect


Edit: and even more odd, the bug appears to be exclusively in A4 Clearfell Encampment. As soon as I would out into Clearfell, the resists were correct again, like they were in the Riverbank. Haha.