[scribus] Disappearing frame

[a.l.e]

hi
>> I prepared a multipage document. When it was ready I exported to PDF.
>> Pre-flight inspector reported no relevant problems.
>> But one of my text frames vanished from the PDF.
>> There seemed to be nothing unusual about it.
>>
>> In the end I had to copy the contents, delete the frame, create a new 
>> frame, and paste the contents back.
>> The new frame exported as expected.
>>
>> Has anyone seen this? Is there an explanation?
>> If I have to shrug and just write this off, it wouldn't be the first 
>> time I've done it with page-layout software.
>
>
> We're (almost) always kind, Tim.
>
> We get a number of nonreproducible reports, and each one is hard to 
> assess.
> Perhaps you accidentally turned off printing of the frame in 
> Properties > X,Y,Z, since this will also prevent export to PDF.

or on a layer?

ciao
a.l.e