PTB program freezes in the middle of an experiment

1

I have been running this experiment with PTB on the same setup for a while now. Today, on 2 separate instances, the program froze during the experiment and I had to exit out using the esc key. It was running fine yesterday, and I haven't changed anything with the hardware or the software. I'm running PTB 3.0.14 - Flavor: beta - Corresponds to SVN Revision 8715, on a Windows 10 PC. Again, I have been using the exact same setup for months now, and I don't know what has changed. 


I tried running a shorter version of the task and it was fine. The messages printed out to the command window were not different from the run that froze. 


Given the above information, I do not think this is a PTB problem, but I'm also at a loss as to where the problem is coming from. If there are any thoughts or suggestions on how to debug this issue, I would greatly appreciate it!


Thanks!

Xin

University of Delaware

2
Thanks for the suggestion. I have disabled updates for this exact concern months ago. I did check update history today and everything looks fine. It is connected to the internet because of our institution's MATLAB license. I realized that the internet could have been glitchy today (from separate observations) and may have caused MATLAB to stop working temporarily. My PI has agreed to purchase a standalone license so hopefully this will get to the bottom of the problem.