Basically title. Playing as Rivulet on switch. LTTM has changed and is delivering the correct dialogue for Rivulet. Other areas like Memory Crypts and The Underhang are changed and consumed by rot. However, Five Pebbles himself seems to be operating the same as he was in Survivors campaign. He is still floating, his chamber is unchanged, he delivers the same dialogue he would to Survivor about taking the old path. As far as I can tell his structure is also the same- it isn't named The Rot but shows the subregions names as usual. It isn't consumed by rot, just being the standard version of Five Pebbles. I'm currently unsure if the cell is still accessible despite this, but it's possible Rivulets campaign may not be completable as is.
One note I will make is that I did passage to the shelter within Five Pebbles (the one beside the gate to The Wall) I'm unsure whether or not this triggers the bug. Thanks for your time