I think this has to be a bug, because I’ve tried popping every remaining bubble from every direction and none are popping. I remember that one of the mice moved quite early in doing that room, with no apparent way to move it back? And I didn’t notice bubbles popping if there was an object on the other side; it’s always been pretty vague to me what causes a bubble to pop. The closest I’ve been able to determine is that there is a sequence to it, only a single bubble can pop at any time, and I have to try them all until I find it. Is this not the case?
Viewing post in Robot Vacuum Cleaner Quest comments
The sequence is ROX where R is you, O is the bubble, and X is any other object. In any direction. Like popping a spot, pressure from both sides.
You can talk to the other RCV to move it around, allowing you to put an object on the other side of a bubble to pop it when pushed. Otherwise the bubble will say scronch. I do believe this area needs a tidy up and a bubble popping enthusiast to learn from.
It's also possible an error occurred, softlocking the bubbles somehow, but I don't have any leads yet on what that could be. I'll keep a look out.