The guards are invisible in the Celadon rocket hideout sliding maze. Every time you go there you get caught immediately by an invisible guard and end in the rocket jail. Everyone is stuck and cannot get the card key and continue past this part because of this.

 

ty

from naero:

"This is being looked into as we speak; thank you for reporting.

 

I will need to examine the scriptwork in the most up-to-date map files to pinpoint the issue; I'll need to await Nikola to be around before I can do so. I have only made one change to the area recently, and since it should have had no impact on the control flow of the quest, I assume changes were made elsewhere that have engendered this issue"

 

source : https://pokemonrevolution.net/forum/viewtopic.php?f=16&t=6012