New PMS Version 1.40.5.8854 stops running after some minutes on Synology DS215j

There is a known problem with ViewStateSync.

As best I know, it will be resolved in 1.41.0 (next release)

For now, to confirm this, Settings - Account - ViewState Sync - OFF

If that resolves it then it’s confirmed.
If not then I have another small fix engineer’s build which addresses another problem we found