Unresolved Cura 4.1

I went and installed Cura 4.1. The compiled prints would randomly just pause for more than 20 seconds or sometimes just stop. I then tried load the STL using Robo Cura 2.5. It screwed up the filament feed and a ton of filament was fed out. I reloaded robo Cura 2.5. I then restarted Robo Cura 2.5 and loaded an STL file. The Robo Cura 2.5 now worked.

Does anybody have any experience with Cura 4.1. Is there something special I must do to eliminate the random stopping. And by stopping I mean that half an hour later it is still stopped.