2020 Tesla 3, LR AWD, mobile charger, level 2, 20 amp (16 amp nominal draw) same issue.
120 volt, or 240 volt / 20 amp, mobile charger, 0/1/2 amps, about 10-20 minutes, AC charging failed.
Scheduled the service appointment, tech came, no problems, told me it's a known issue and should be...