Rune reset on claw

[zayir]

Server: S77

Character: eternal Z

Type: auto Rune reset

Details:
I have upgraded my Berserkers claw's rune to Greaves rune upto Rank 3 Lvl 3+ twice and it gets reset to rank 0 lvl 1 automatically. this has happened twice already. I have already used up a lot of rune stone to upgrade and am loosing rune stones to this. I haven't noticed anyone else having this problem. Please fix this for me.

Eternal Z

[EdgeLOA]

Did you inherit any hero to berserker?

[zayir]

Yes, but this was before I upgraded rune for the second time. I haven't done any inheriting recently.