I’ve been using my new Glowforge Plus for a little bit now to produce PETG visors for 3D printed face shields. I’ve been cutting 0.02-0.05" thick PETG for the past couple of weeks, no problem. Now, when I’m trying to cut some new 0.03" PETG I just got today, I keep getting the Material Thickness Issue. Is this an issue with the lens being fogged up, the camera, or something else? This is a time-sensitive issue, so any help would be appreciated. Thank you!