Axis Lines Disappear

I have Sketchup Pro 2021 for my engineering class. Today, 12 students experienced the same issue of their axis lines disappearing and giving them on all white background. This was a first for me and I like to think I’m pretty good at Sketchup. I am wondering if it has anything to do with this morning’s prompt that the 2022 Pro version is available. Though, my school doesn’t have a license for 2022, so we just click the ignore option. Anybody else having this issue today?