When the nozzle lays down the filament it also pulls on the model a little bit. This drag can cause tall, thin models to wobble or tip as the nozzle moves around. If this happens, new filament cannot be laid down in the correct spot on the model.
Your parts are thick enough that I would not have expected this drag to be an issue, but they are also pretty tall.
Studio v1.10 and newer have support improvements that work really well on vertical surfaces. Just manually paint a few spots for tree supports on the sides. These will not actually touch your model, but just stabilize the print and prevent the wobbles. Like this:
Stable- ROBOT AMBULANTE.3mf (598.9 KB)
I had some cheap ugly PETG that I used to print one of your pieces, and it printed pretty well. This trial does not rule out heat creep as your problem, but it might be worth a try.
Also, keep the door open and/or the top off your P1S when printing PLA, PETG, and TPU to help prevent that heat creep.