Yes 100% same with me. SE 2. iOS 13 no issues using 18w. Now I plug it in same phone on iOS 14 and it will charge for 20-30 seconds then just stop. If I unplug and plug back in will start again for 20-30 seconds. When this happens the charging symbol goes back to white and the lightning bolt goes away till I re plug it in. This is with apple 18w and apple USB c to lightning cord. I had been using a different 18w plug and thought that might have been the issue so bought apples and it hasn’t helped. I only noticed this as after sitting for a half hour it hadn’t charged so it’s not like it’s charging but not showing