I think this has to be bug, he was stuck in undercroft. i tried to go next portal and won't let me.
https://medal.tv/games/warframe/clips/1gzfbg4zYzE6j6/d13378PWhNRZ?invite=cr-MSxZSm4sMTY5NTI5OTQ2LA
i have a same issues disspointed
Monday - Nightwave Reset
Tuesday - Circuits Reset
Wednesday - Kahl Reset
Thursday - Archon Hunt Reset
why all the reset in same day. it is crazy.....