Glance delay in first render on Fenix 8

Has the behavior of glances changed on the Fenix 8 vs. the Epix Pro?

I have a glance that renders a diagram and it uses storage and all that to not have to wait for anything on activation of the glance. On the Epix 2 and Epix Pro this has worked flawlessly for many years.

Now I got the Fenix 8, and I noticed that whenever I open the glance list, my glance initially shows as a gray rectangle with the glance name in it, and after a second or two the actual content is visible. I can not reproduce this in the simulator.

My glance can be found at https://github.com/dividebysandwich/SolarStatus-Garmin in case someone wants to look, but I was hoping that someone could tell me that there's some known thing that changed and that I can adapt to make this work more seamlessly...