Driver not compatible with Linux 5.3.0
See https://github.com/gordboy/rtl8812au/commit/30d47a0a3f43ccb19e8fd59fe93d74a955147bf2 for some ideas what might be missing. Driver crashes when connecting a wireless network card.
Updating to upstream might be sufficient as well (https://github.com/aircrack-ng/rtl8812au)
Edited by Leonard Marschke