Recently I've been having trouble printing properly on my Creality Ender-3 printer. I ran a pretty long print (approx. 15 hours) that turned out really well. I then started printing an attachment for the original print and saw that it was printing layers that were extremely thin.
I first scraped off the excess filament left on the extruder nozzle. Then, I heated up the bed and rubbed off the layer with alcohol. I tried printing it again but it still didn't print right.
From the images above, you can tell it's noticeably hard to see the layer, which shows just how thin it is.
I sliced the model in Ultimaker Cura. I set the layer height to 0.15 mm. I've printed models before with this height but the layer wasn't transparent.
What should I do to fix this issue?