Trying to load this mod with 248K will always result in a Non-recoverable error while trying to load the game with the following error:

https://cdn.discordapp.com/attachments/1222097876138594410/1251302067390382120/image.png?ex=666e155c&is=666cc3dc&hm=59288c49e55fc8dce983adde604343e497997ba95479512ef83e12481e316b87&

In case image isn't loading > "Failed to load mods: Error in assignID: item with name 'gr_magnet_wagon_entity' does not exist.

Source: gr_magnet_entity-weight-500 (cargo-wagon)."

Thanks for reporting, I'll look into it.

That mod is doing something fishy. As a workaround, I disabled creating weight-variants of entities with names staring with 'gr_magnet_'.

Could you please test version 0.1.2? I tested it and it works for me.

Thanks for the quick response!
248K seems to no longer be a problem (i'll update you if it becomes a problem again).

I also discovered through Brute force testing that Renai transportation also causes problems with the following error when loading the game:

https://cdn.discordapp.com/attachments/1238992010241769593/1251558692969779270/image.png?ex=666f045d&is=666db2dd&hm=ec7cb549ba147e6e560acdc3ddd22c7560ae32dc893ba98e61738dca7cef0f2d&

in case image isn't loading > "Failed to load mods: TrainMass/data-updates.lua:73: attempt to perform arithmetic on local 'max power' (a nil value)
stack traceback:
TrainMass/data-updates.lua:73: in function 'modifyTrainCarriageBaseWeights'
TrainMass/data-updates.lua:136: in main chunk"

Interesting... that mod introduces a locomotive without any power - probably the flying ones :)

Anyway, I added support for that, and also noticed - after the fix - how that mod triggered the same issue with the AssignID in your opening-post, so I properly fixed it this time, hopefully once and for all.

Could you please give 0.1.3 a try?

Thanks! i'm no longer getting any errors when trying to launch the game. much appreciated for the quick responses :3