Closed Unassigned: Conversion hangs - intermittent [1854]

I installed the latest MCEB beta on a new PC a week or two ago. Worked pretty well for a while, but the last couple of days, some files are getting stuck in the conversion process. Rebooting did not fix the problem. One of these files converted successfully on a second attempt, while another failed twice but succeeded on the third try. Here's a couple of logs:

http://1drv.ms/1g2sBtZ

http://1drv.ms/1g2xlzU
Comments: Update to 10.18.x or later version of Intel graphics drivers