I’ve got a flashforge finder that seems to work great. However, on my most recent print, there were two sections that looked like the print had delaminated, but really just were weaker or less dense. On the affected sections, I could easily break through the sides of my print just by pushing with a finger, which I can’t do on the unaffected sections. In the picture Ive attached, you can see the rougher section near the bottom of the print. I’m using 3D Solutech 1.75mm PLA filament at a temp of 210 C.

Does this type of issue occur because of print settings like temp or print speed, or is this a hardware issue, or just bad filament?