I've an update. It appears to be working now! Here's what I did: 1) updated the Tesla wall charger firmware by following instructions here: Troubleshooting a Gen 3 Wall Connector. 2) Took the advice of TreoFred and held a slight up-tilt of the charging handle until the adapter is latched on by Volvo. Not sure which part was most instrumental in the charging sequence but IT WORKS.Just tried Lectron Tesla to J1772 Charger Adapter with my Tesla Wall charger on my 2022 Volvo C40 - not working and fails immediately. Also waited for some other event for several minutes but nothing.