I don’t have a BambuLab printer, but the printers I have owned have done that when the nozzle is clogged, when over extruding or when the print bed is too close to the nozzle.
Basically, something is preventing the plastic from extruding out and the extruder motor is slipping.
This is literally happening. Without getting too specific so her job stays safe, my sister works as an ocean researcher for the government. They removed any mention of the word “diversity” and “biodiversity” from their research and so far, they haven’t lost their jobs yet.