Hi @Gustav_ASUS , I had two fold problem Hardware + Software. Hardware problem resulted due to splashes of water on Bottom Usb C port. This was resolved by replacing the Bottom USB C port. Software Problem was due to Charger Type not being set when the charger cable was plugged in while device was ON. This is a typical Kernel Flag issue and after unlocking Device bootloader i was able to tweak the flags. I will not recommend software solution to anyone because it will lead to voiding Warranty Sorry i won't be able to share my Device's logs , since i have done many customization's and i don't want to share details
Same thing is happening to me, it is not charging from the bottom port, charging fine with the side port. Once i keep the charger in the bottom port and restart the device it starts charging. This is a really messed up software issue that should be addressed please.