I'm not sure if this is a mod issue or the primary game. The only custom UI element in the game here is from the Nixie Tube mod
Looking at it more closely, it seems clear the Nixie Tube mod is drawing last, but should it be able to paint over a main-game power warning?
[0.17.12] [Mod] Power warning icon order
Re: [0.17.12] [Mod] Power warning icon order
Thanks for the report but you'll need to contact the mod author about this.
If you want to get ahold of me I'm almost always on Discord.