I have had a few nights now when I have tried taking Flats with my Atik 383L and EFW 2 combination. The program will capture a few frames and then I get a message telling me that the program has stopped responding. I have not been able to complete any sequence of flat captures - and have had to resort to Atik's Artemis program which seems to work fine.
As you can see the logfile says something about entering a super dangerous loop. I have had problems with bias frames too. Darks and Lights seem OK. I put a 4 second delay between exposures.https://dl.dropboxusercontent.com/u/54557410/sg_logfile_20160609203953.txt