I'm trying to print some text on the top of a small model. No matter what I've tried, I get holes in the top most layer or two (the text is two layers deep). I've tried all sorts of combinations of settings for internal & external single extrusions, different temperatures, speeds, cooling etc. The preview shows that material SHOULD be deposited in lots of places where it is absent. I can't tell if it's a bug and it's not actually trying to put down material where the voids are, or it they are so small that they aren't sticking to the previous layer.
I'm using eSun PLA+, which has always worked well for me in the past. This spool seems to be a bit different. For example, I had to change from glue stick on glass to Kapton to get good adhesion. I even tried drying the filament for several days, but it didn't make any difference.
Here's what the preview looks like, and I've circled a bunch of places where I get voids in the print:
And here's the best photo I could get showing what actually happens:
As an example, the top & bottom loops of the S's should be filled, but there's nothing there.
I've also attached the factory file. There are two processes, one to get the bottom section right with a fixed bridging angle, and the 2nd process has automatic bridging angle and the settings for the top text.
Any ideas or suggestions would be greatly appreciated. I need to make 50 of these, and I really want to get them looking a lot better than they are now.