I suspect this happened after an update - I am using Wireshark 3.4.6 on Windows 10 20H2 with all updates
I have both Winpcap and npcap installed
Interfaces ARE detected if I run as Administrator or if I uninstall npcap
I've tried manually removing npcap and re-running the wireshark installation so that npcap is re-installed: npcap was NOT installed with the option to restrict access to administrator.