I've been using MMEX for years and its been working just fine, but now OneDrive sync isn't working.
I've completed uninstalled and re-installed the app.
In the OneDrive app on my phone I can browse to where the sync file is stored no problem.
When I start MMEX up it takes me through the setup and I go into the configure sync option. It then asks me for my OneDrive credentials (via CloudRail) but an error briefly flashes up (service code error in something or other) and then it takes me back to the configure sync menu - not having configured it at all.
Any ideas?