I don’t know if there’s a difference between the two versions of UMC, but I gather not all adapters contain the right circuitry to translate from Tesla’s data protocol to J1772.
Case in point: my neighbour got a cheapo adapter and it wouldn’t charge his Hyundai from my Gen2 wall charger unless I change the internal DIP switch to allow non-Tesla charging. I got a TeslaTap Mini, which claims to contain the appropriate circuitry, and it charges my Lucid just fine from the Tesla wall connector without messing with the DIP switches.
TLDR: Try a different adapter - I recommend the TeslaTap.