I will pay closer attention to when it's happening. I'm not sure which charger and cable combo causes this behavior or if it happens on more than one of my chargers or cables.

I am using 3rd party cables.

One possible cause I thought was that I had my iPad Air plugged in at the same time, using up both USB-C ports on the 4-port Baseus charger.

The charge cables I have are 6 feet or longer too so maybe there's an issue.

Thing is despite the connect and reconnects, there's no issue with the devices being charged in the expected time.