Lira Vaal should stay open so long as the instance is open

Hello, really weird situation just occured.

I was trying to run Lira Vaal at level 67. The Gem Room rare thaumaturge rolled with regen aura + ES aura and it was simply too tanky for me to deal with.

I went to hideout to respec my tree a bit to get reduced life regen on cursed enemies but when i came back (under 1 minute with loading times) Lira Vaal closed.

I think that's kind of lame. Doryani should let you repsec in Lira Vaal, or you should be able to go between it and Hideout, or that guy should not be so god damn tanky lol.

My main weapon has:

40% increased Critical Hit Chance for Spells (rune)
124% increased Spell Damage
110% increased Cold Damage
+256 to maximum Mana
+4 to Level of all Spell Skills
36% increased Cast Speed

And I can kill map bosses in 1-2 minutes playing frost darts Varashta. I understand that this ascendancy is not that offensive if you don't use the djinn but I don't think im ill-equipped for him. He is much tankier than the other minibosses in Lira Vaal and it sucks especially cause I knew what to do to try and solve this issue.