I know about the nebulosity rejection defaulting to strong. Tonight I manually autofocused before starting the sequence. Although the AF settings did not have AF on sequence start enabled, it immediately started an AF run when I started the sequence. Aborted, checked all the settings and it still did it. I shouldn’t be a temperature trigger, since the manual AF run and the sequence run were done one after the other. I don’t know if it is a 126.96.36.199 issue. The sequence itself was generated in an earlier version BTW.
The AF routine which I didn’t ask for has just stopped - but it was not part of a sequence, since it did not auto-close. I had to close it manually and then hit run sequence again, and it worked just fine. I’ll store the log file and put it up in a dropbox. It certainly looks like it got confused.