Holes in walls suddenly

Hi everyone,

I have two P1Ps and one is making Problems for a week now. Both being calibrated, maintenance up to date. So I printed the same model with identic settings and the one is printing with holes in walls and seam positions. They have around 3000-3500 hours each. I changed Hotends and Extruder completely. I some Times Had the Error “HMS_0300-1000-0002-0001” on the failing printer from time to time. What can be the Problem?

Does this happen with other filaments?

It is also the same roll of Filament in both cases.