OK Jared, very happy to report that using version 2.4.2.11 the sequence completed without a hitch. 50 frames @ 200sec darks, with a 60sec pause in between frames. I let it go right through including completion of the end of sequence routine. Link to log file below, I hope you find something. Good luck mate.
I'm going to set it taking more darks and leave it run over night. I'll let you know how it goes in the morning, and post the log if there is any problems.
https://www.dropbox.com/s/hbz2rsb842xpdsa/sg_logfile_20160626172022_Version-2.4.2.11.txt?dl=0
Thanks
Rex