Description of problem:
Launch Banshee, the Banshee Media Player window appears with nothing in the window (just a gray window). Running top, lists a process "Main Thread" using 100% of CPU. If you let the process run (at 100% CPU) for about 20 minutes then the controls and albums appear in the Banshee window and the application is functional. At that point, the "Main Thread" process stops using 100% of the CPU.

Killing the process "Main Thread" terminates Banshee.


Version-Release number of selected component (if applicable):
banshee-2.6.2-12.fc23.x86_64

I also have installed:
banshee-community-extensions-2.4.0-11.fc23.x86_64

How reproducible:
This now happens every time I launch Banshee. 
I have been using banshee for several years, but this new bug appeared suddenly last week. 

Steps to Reproduce:
1. Launch Banshee from either the menu or at the command prompt
2.
3.

Actual results:


Expected results:


Additional info:
My system is up to date ( kernel-4.3.3-300.fc23.x86_64 ). I have an AMD Phenom II X6 1055T Processor, 8 GB RAM.

The music files are on a separate drive, but other applications can access the files on the drive.

I have attached (as a file) the output from the command:
 banshee --debug
The process quickly gets to the line:
[1 Info  23:43:13.891] All services are started 0.79807
    But, the slow down seems to enter at this point, (the next line in the output):
[4 Warn  23:52:26.157] Executed in 551295ms 

There seems to be two places where there are 9 minute delays, both of these sections begin with:
     DELETE FROM CoreCache WHERE ModelID = 9;
followed by a long INSERT query (that does not seem to have a terminating ; )

Once Banshee is up, the process "Main Thread" stops consuming 100% of the CPU. However, after a short period of time playing music, a few minutes, the "Main Thread" process resumes using 100% of the CPU.

I have never seen a process named in the fashion "Main Thread" (spaces in the name and caps), I thought my system had become corrupted.