I'm playing with a mod that modifies the quality names, and when an upgrade happens, the text (https://github.com/xsoftwareforge/factorio-mod-quality-turret-reworked/blob/main/control.lua#L209 here I think), prints the standard names, not the customized names.

Mod in question:
https://mods.factorio.com/mod/Quality-Plus-Plus

I added a fix, you can download the latest version here: https://github.com/xsoftwareforge/factorio-mod-quality-turret-reworked/archive/refs/heads/main.zip if it works I will upload it here.

The drop down for Fixed Ghost Quality is still a static list of the original, but the Quality Up! message returns correctly. This mod added a few extra levels of quality, so when I get to that point, I'll confirm that quality levels beyond 5 work or not.

The drop down for Fixed Ghost Quality is still a static list of the original, but the Quality Up! message returns correctly. This mod added a few extra levels of quality, so when I get to that point, I'll confirm that quality levels beyond 5 work or not.

Good point, I will add a fix for the list.

The drop down for Fixed Ghost Quality is still a static list of the original, but the Quality Up! message returns correctly. This mod added a few extra levels of quality, so when I get to that point, I'll confirm that quality levels beyond 5 work or not.

I've updated the mod to 0.11.2. It should work now.

Amazing! Thank you for your work on this. It's really enjoyable to play with.