BluRay Creator stuck in processing

[midwaybrit]

I just purchased this part of DVDFab today having had your BluRay Copy for years.
Main reason is I want to burn my MKV files to BD25 media. However, I added about 12 x 1.5GB Files and they loaded without a problem, but it has been stuck in 'processing' Total Time elapsed for nearly an hour and Task Time just shows a row of zero's.
Am I doing something wrong ?

[90312]

You may be overloading the queue? Some report problems with more than 10 in a queue?