[INVESTIGATING] Skirmish dungeon challenge logout due to inactivity

Platform, device and operation system
Android 10, Huawei P30 Pro

What were you expecting to happen, and what actually happened
I’m expecting to be able to finish the skirmish dungeon level 95 to get crystals without being kicked out due to inactivity just because the fight length passes 30 minutes. It seems there is a limit of 30 minutes to finish a fight. If you pass it you’re logged out. I’m playing the skirmish challenge on lvl. 95 to get a Xione crystal, but even though I’m constantly playing (without any pauses) I get logged out. The enemies are so boosted (health is between 30k-50k+ on each enemy) that it takes me 30+ minutes to beat them. So I cannot get the crystal even though I try. This sucks big time. You need to fix this now. Why even have a time limit? I’ve spent 100 diamonds now just to get logged out from the fights, and I cannot get the crystals I need.

How often does this happen? When did it begin happening?
It happens all the time. My character is too weak to be able to kill these boosted enemies within 30 minutes.

Steps to make it happen again
Keep fighting the same fight for more than 30 minutes.