would guess it is a printer problem. PETG likes the initial starting height just right so it is not over crushed or too high with a bed temp of 70C. .02mm too high and you have adhesion issues. PETG will stick like epoxy on clean glass, I have actually pulled a chunk off my plate removing a print. Inland is most likely Esun re boxed just like their PLA+ so I would guess the filament is ok. I use eSun all the time without issue. What are you printing? Is the model flat on the build plate or is it up in the air? Lots of models off the internet do not print properly, try positioning it in the slicer so it is a mm below the plate and see if that helps.