Do you have the Acrobat application open?
What changes have you made?
Have you applied updates or had updates applied?
Have you installed Reader?
Have you upgraded to newer major version of Acrobat?
Is this when you're using the form in LiveCycle Designer in Preview, in Acrobat, or Both? If you open the console (Ctrl+J), are any errors shown?
Yes, Acrobat is open, editting the form in LC.
Changes? I have rechecked the Preferences options to confirm the console is enabled. No changes to Acrobat otherwise that I know of.
All updates applied.
Yes, using LC in preview. Haven't tried CTL-J as the console window always opened automatically on an error before.
I will try ctl-J.
Thanks for the hint.
The usual advice is not to reply too much on the preview mode in LiveCycle Designer for serious/reliable testing and debugging. You might want to post this to the LiveCycle Designer forum. They may have more experience with the problem you're experiencing.
Tried ctl-j with no results both in Acrobat and while in LC.
I will try the LC forum, thanks to all for trying to help.
I would save the form as a PDF and then open the saved file with Acrobat.
Have done that many times.
Open Acrobat - Open form (pdf) - start LC - edit fields and code - LC preview to check work - save form - close LC and Acrobat
Alas, no luck.