Created attachment 137298 [details]
WRITER document with inserted PDFs

Hello,

if opening the attached file "BremsModul.odt" after some time some of the inserted PDF images should disappear. Other image formats, e.g. PNG, should not be affected.

All the inserted PDF images are created by using the "Export as PDF" feature of CALC/DRAW.

1st Test:

[1] Open the attached document and set "Tools>Options>LibreOffice>Memory>Remove from Memory after:" to "00:01". You don't have to wait a long time till the error occurs if setting to "00:01".
[2] Don't touch the opened document and wait some time (about 3-5 minutes).
[3] Now touch some of the inserted PDF images.
[4] Some of the PDF images should disappear and only the PDF image frames should remain. If testing with "LO 5.4.3.1" inside the PDF image frame the string "LESEFEHLER" (= read error) should to be seen.
[5] The longer you wait, the more PDF images should disappear.
[6] Save the document with the lost PDF images using a new filename. Now unzip this document and take a look at the subdirectory "pictures": Some files should be missing in comparison to the original document.

2nd Test:

[1] Open the attached document and set "Tools>Options>LibreOffice>Memory>Remove from Memory after:" to "23:59".
[2] No matter how many minutes you wait, no PDF images should disappear.

Tested with "LO 5.3.6.1" / "LO 5.4.3.1" and operating system "Windows 7 Home Premium 64-bit".

Best regards
Hans-Werner