Im working with an old reprap cotroled directly with an Laptop with cura. Filament is RS-Pro (2325395) Pla though. Open around 4 weeks ago but i have this problem in some capacity since i have this Filament. Before i had some really old pla which snapped all the time because it wss so brittle. Is this really just shitty Filament? Help/ Insight would be much appreciated.
When I had a similar issue to this I resolved it by adjusting my retraction settings, specifically retraction distance and speed. I think that may be the case here, as the layers most dramatically affected appear to be those with the most retractions taking place. Depending on the material and the style of printer you have (direct drive or Bowden) your settings will be different, but I would start by dropping the retraction distance and see how that changes things.