moa999
2020 3 SR+ MSM
Had the update already been pushed, or did the new tails trigger a request?I have tested this today, and I can confirm that the UMC supplied in 2019 does work at 10A / 15A with the new tails (part numbers 1463091-10-C and 1463068-10-C) and the firmware update.
So long as you have the correct part number for the new tail, that's not your problem (and I assume they have different numbers)