It's windows 10 64 bit, new wallet.
I closed Nu, deleted the whole Nu folder (there's no '.nu' folder - just 'nu', so not sure if that's normal?), restarted Nu and closed once folder & files were there, then closed Nu again, replaced the files, then this error occurred when restarting:
A fatal error occured. Nu can no longer continue safely and will quit.
EXCEPTION: 22DbRunRecoveryException DbEnv::open: DB_RUNRECOVERY: Fatal error, run database recovery
C:\Users\David\Desktop\CryptoCurrency\nu-5.0.1-win-gitian\64\nu.exe in Runaway exception
The last part of the log file had this:
ThreadStakeMinter exiting, 0 threads remaining
UPNP_DeletePortMapping() returned : 0
select() for connection failed: 10038
Any hints would be appreciated, but I'm ok to leave it syncing for now, and hopefully it'll get all the way!