Finder not displaying Extension indicators on Mojave

Since I've upgraded to Mojave I'm experiencing a problem with Finder not displaying the file status indicators for various extensions including OneDrive, Dropbox, Box and Creative Cloud. It's fine for iCloud, but these others aren't showing anything.

When I uploaded to the latest version of Mojave 10.14.2 it showed the Box indicators briefly, but then they disappeared.

I've seen when I search on this that it's not an uncommon experience out there and I've tried the various options suggested such as switching on/off in System Preferences/Extensions, relaunching Finder, starting in Safe Mode, et al, but to no avail.

Is there a reset option for Finder?