Yup, I've tried lubricating the locking pin with silicone spray and using compressed air to clean out the pin, per other threads here with the problem.
What happens is that the 1st or 2nd time I plug it in, I hear quiet clicks from the charging port then the light turns steady yellow indicating that no current is flowing. After two or three attempts, I'll hear a loud click from the engine compartment, then the locking pin will engage and the car will start to charge.
This behavior has been consistent across a variety of L1 and L2 chargers for the two years I've owned my 2019 SE.
I'll take it in to the dealer to get checked out before the warranty period runs out next year. I've just been waiting until I've had to take it in for a regular service.
2019 eGolf SE w/DAP Indium Gray Metallic
2016 eGolf SE Limestone Gray (Lease returned)