So I ran Big Box 6 times with the theme that was giving me the freezing error and only had one instance where it did not occur. Mind you when it occurs the program doesn't crash but becomes stuck with just the first platform selection and the only way of unfreezing it is by hitting the windows key. I labeled the 6 logs by: method of launching bigbox and whether or not I skipped the intro video (assuming if it may have correlation to the loading assets of the theme.) For 3 of logs I launched via a batch file that I have instilled with admin rights (it is my method of launching bigbox with admin privileges from my TV via Moonlight Streaming), two attempts I skipped the intro and for the third I did not. All 3 of those fell to the same result of freezing when selecting a platform. For the next 3 I launched via LaunchBox desktop, on one try it worked flawlessly with no error. Hopefully y'all can find something useful from the logs.
Debug (batch file & skipped intro) attempt 1.log
Debug (batch file & skipped intro) attempt 2.log
Debug (batch file & DID NOT skip intro).log
Debug (launchbox desktop & skipped intro).log
Debug (launchbox desktop WITH admin rights & skipped intro).log
Debug (launchbox desktop WITH admin rights & DID NOT skip intro) [Freezing issue did not occur in this instance].log