Thank you for your reply, Steven.
First I decided to go back a couple of beta's, to a point that I am certain the issue did not occur. It still crashes. So as it turns out it's not the musicbee update.
I did lookup the event viewer, and found the following recent entry with Musicbee, also ntdll.dll seems to have something to do with it. Does it tell you anything useful? Is there anything that you or I can do to fix this?
Log Name: Application
Source: Application Error
Date: 21-Sep-17 14:21:35
Event ID: 1000
Task Category: (100)
Level: Error
Keywords: Classic
User: N/A
Computer: GDOPC
Description:
Faulting application name: MusicBee.exe, version: 3.1.6445.32424, time stamp: 0x599f0693
Faulting module name: ntdll.dll, version: 10.0.15063.608, time stamp: 0x802f667e
Exception code: 0xc0000005
Fault offset: 0x0005da74
Faulting process id: 0x25ac
Faulting application start time: 0x01d3325e38541902
Faulting application path: C:\Program Files (x86)\MusicBee\MusicBee.exe
Faulting module path: C:\WINDOWS\SYSTEM32\ntdll.dll
Report Id: 2c8afc50-3180-4233-9470-2efb17b93f49
Faulting package full name:
Faulting package-relative application ID:
ps. I am not using webroot.