The game is crashing when I selected the tool in the cursor and cycle between the modules:

453.464 Error MainLoop.cpp:1284: Exception at tick 157778412: The mod Module Inserter Simplified (1.0.1) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event ModuleInserterSimplified::mis-cycle-module-forwards (ID 520)
Unknown item name: mis-insert-dark-module-1
stack traceback:
[C]: in function 'set_stack'
ModuleInserterSimplified/scripts/cycle-module.lua:31: in function 'cycle_module'
ModuleInserterSimplified/scripts/cycle-module.lua:41: in function <ModuleInserterSimplified/scripts/cycle-module.lua:41>

I'm using this mod: https://mods.factorio.com/mod/DarkModules (The game crashs when it should select the modules introduced by this mod!)

Thanks.

It works fine for me when using it with Dark Modules and I can't see why it is crashing for you. Would you be able to send a save that I can sync to with your modlist (or just a list of mods) please?

I modified locally that mod (and a bunch of other mods too!) I will need to upload my entire folder with mods.
I will try to investigate here and post if I found a solution.

Thanks!

Maybe you can reproduce the bug with this 2 mods:

https://ufile.io/f/az4wc

Thanks.

Well if you modified that mod, feel free to upload the modified version in case it is solely that modification that causes the error.

Yes it is your modified version of DarkModules. You've changed it from data.lua to data-final-fixes.lua which means that it is running after my data-final-fixes so ModuleInserterSimplified doesn't create selection tools based on the dark modules because they don't exist. You can fix it by either changing DarkModules' data-final-fixes.lua to data-updates.lua, or add an optional dependency on DarkModules to ModuleInserterSimplified/info.json.

There's nothing I can do about mods adding modules in data-final-fixes other than add culprit mods as optional dependencies. I'd do it if it was a sizeable mod but not if it isn't even released on the mod portal. Mods shouldn't be adding items in data-final-fixes for this exact reason. I will make it 'not crash' but instead the modules just won't be in the cycle.

Thanks. I fixed adding 'DarkModules' as dependency!
And sorry for the trouble...!