I’d check you don’t have a little piece of grit or something in there. There shouldn’t be any problem plugging in.
In fact I’d go so far as to say USB-C/Thunderbolt 3 is my favourite serial connector ever. I hated USB 3.0, with those crappy skinny connectors on the back of external hard drives that end up loose with a crap connection eventually.
Or at least all but one of my 9 dives has.
I’ll be glad when everything goes USB-C. But I digress.