I'm using the same version of PN and haven't noticed the very issue you illustrate. However, once in a while PN will crash almost immediately when I first open a folder. By restarting PN, the folder is digested without hiccups and program flow continues in a normal manner. This might be connected to the problem you have observed, perhaps?
The latest version of PN offers support for D500 and that besides the highly improved browsing of networked drives (for which PN 1.25 and earlier are notoriously slow) makes resubscribing tempting.