Same issue, 15" touch bar. Noticed the battery draining while the computer was plugged into power. It recognized that it was plugged in, but the battery was not charging. At first I unplugged and replugged and it started to charge. Now it no longer charges no matter what I do; reset the SMC, tried other chargers, etc. Talked with Apple tech on the phone and preliminary troubleshooting seems to point to a battery issue at the very least. Will have to take it in and get it fixed or replaced. Pretty disappointed given how new the laptop is (less than 4 months) and how much it cost.