Just uploaded a fix to Combat Reticle for the "nil function" error that would happen on loading characters and using wayshrines. If you don't want to download the latest version, you can fix the issue by editing the manifest file (see the "What's New" section on the Combat Reticle page).

On another note, I finally managed to create a combat mode configuration that produces a reticle that I can actually see during combat! (the whole point of the add-on!) It's ugly, but works: I used a largish black filled circle as the base image, then use a smaller hot-pink filled circle as the overlay. Then apply a transparency animation to the overlay only, using the square-wave generator and a strong modulation level. This creates a highly visible blinking dot that's hard to miss!