Will do and report on the outcome, gotta run to the customer now. Thx in advance.
Peter, this did the trick, apparently.
Thank you very much for your kind support.
If the issue comes up again, I will try to post more specific circumstances.
Did you have third-party plugins? If so, put them back one at a time to test, and if the crashing starts up again, contact the plugin manufacturer for an update.
I did import a few JPG and PDF, and had to transform them (90deg counterclock-
wise). When moving these objects, the issue came up, if I remember correctly.
Was not in "action logging mode" though, so no precise recollection of events.
The imported files as well as the master document sitting on a NAS device.
(Inadvertently I also selected "alternative layout", which later created
another issue with "brochure" printout. But I found a workaround for that
Anything else quite straight forward Indesign work, small document (23 pages).