I have an OLED LE and that same charger and don’t have any issues with it. For reference I’m using it with a 100W Anker Powerline 3 cable, and have been using this setup with my LCD Deck since launch with no issues.

I also tried a 65W Baseus charger and cord I have, also no problems. The green charging light comes on no matter when I plug either of these in (I tested with the Deck off, asleep and awake).

Have you tried unplugging the charger from the wall and leaving it unplugged for at least 10 minutes, then trying again? I had a Nano II 45W die on me and that was one of the troubleshooting steps Anker had me try, it should reset the USB-C controller in the charger itself. Also, IIRC there was some button combo that would reset the USB-C controller on the LCD Deck, I’m not sure if that works the same on the OLED but it’s worth a try.