This did not happen to me before (for a few years) so it may be some setting I accidentally changed.
Or it can be a problem with the DSO.
I am running a trace where the device cycles every 6 seconds. A proper trace looks like this:
However, it often fails to trigger, as in here
To be sure, I changed the trigger level to 60mA but I still often get
Note how it seems to trigger on the end of the waveform, and it missed the leading edge.
I even introduced a hold-off of 10ms to ensure the end of the wave does not trigger but it did not help.
Any help appreciated, and it is may very well be a stupid thing I am doing - just tell me anyway.
BTW, the preview does not show the images, I hope they will show once it is posted...
Regards