Asus 3s 10 Won't Charge Unless Off Or Locked

[Richmas99]

I purchased a zenpad 3s 10 last Christmas and haven't had any issues but lately it won't charge while the tablet is on. If I plug it in while the tablet is on the lightning bolt shows up in the battery icon like its charging but it just discharges what seems like a slower rate but won't actually charge till it's turned off. So far I've tried a new plug and power block. Factory and aftermarket. Factory data and cache wipe. Reinstalled latest fw from sd card. I've tried different outlets and usb on my PC but no luck. The tablet is still under warranty but I was hoping to not have to mail it to Texas and it be gone who knows how long as I use it daily for my business. Any ideas?