This is related to fabric

Is your feature request related to a problem? Please describe.
Industrial Revolution changed its API for energy handling. This broke interaction between TR cables and energy producers and IR machines. The author stated the new one was better and could handle more.

Describe the solution you'd like
Please consider also using FastTransferLib (it may become part of fabric itself according to the readme)
https://github.com/Technici4n/FastTransferLib

Pr merged, issue should be fixed. Feel free to reopen if it persist

Hello, author of FTL here, I hope to PR a new v1 improved API into TR energy once FabricMC/fabric#1234 is merged, but that will require discussing which features exactly are necessary and how they should be added (simulation vs transaction comes to mind).

Do note that the energy part of FTL is specifically not considered for inclusion into fabric API.

In the meanwhile you can use IR cables, they will work just fine with TR machines and cables.