Don´t work with Realistic Reaactors Reborn.
Even you uncheck upgrading Electric modules.
Reactors upgrade to Legendary and explode.

Oh wow! Ok, I'll take a look at how that mod works and see if I can figure out a compatibility patch.

Also, will check and see why reactors were upgraded when they shouldn't have been. That definitely shouldn't happen if you unchecked electrical items.

Do you have a way to share a save file? It would help me test things to make sure any changes work correctly.

It's safe to use with Realistic Reactors Reborn now.

The issue was that their reactors are considered "furnaces" by factorio, so weren't excluded when you unchecked electrical items.

After looking at the reactors, they appear to be multi-entity items, so to prevent issues all the mod items are excluded automatically from upgrade attempts.
So you can turn on electrical items, and those reactors will stay untouched.

Thanks and sorry but...

Die Mod Quality Control (1.2.3) hat einen Fehler verursacht, der nicht behoben werden kann.
Bitte informiere den Autor der Mod über diesen Fehler.

Error while running event quality-control::on_nth_tick(1)
LuaEntity API call when LuaEntity was invalid.
stack traceback:
[C]: in function 'index'
__quality-control/scripts/core.lua:277: in function 'attempt_quality_change'
quality-control/scripts/core.lua:315: in function 'process_quality_attempts'
quality-control/scripts/core.lua:403: in function <quality-control/scripts/core.lua:337>

I try to get you the save

https://www.dropbox.com/scl/fi/wenuppgz01p0wdoanjwka/_autosave1.zip?rlkey=7ar04zj5mx0f5uaz24bergs6b&st=wu19ut2g&dl=0

Activate Quality Control bevor load the save

Thank you so much for the save! That will be a big help.

I appreciate your patience with sending in the bug report and trying the mod again. It’s hard to find all the ways it can go wrong on my own.

I can take a look in a few hours.

Your save file was excellent! I found a few incompatibilities and did a patch.

It should no longer try to upgrade items from a few mods:
- bulk loaders, smart displays, and circuit controlled routers

It should be more stable in general. I let the mod run on the save for about 20 minutes and it seemed fine, but please let me know if you run into any more issues.