Maybe I'm just missing something, but I cant seem to find any commands for recovering a compact machine the /compactmachines command doesn't seem to be listed anywhere I tried looking through eveything with /help and didnt see anything the resembled a compact machine command...

These commands were finalized in 4.3.0 (1.18.2). Closing this issue; see above for a workaround for 1.16 releases.

You are not missing something. There are no commands on 1.16 yet; they are in the works.

@Ioncloud9 A workaround would be to give yourself the block manually. This worked for me. Replace [ID] with the number of the compact machine.

/give @s compactmachines:machine_maximum{cm:{coords:[ID]}}