I was facing this issue and fixed it, the same way suggested. After that everything for a single document works fine, I mean when you enter the document and you goes to the print icon.
What I am trying to do is:
- in list view of salary slips
- select all
- actions
I tried also to select one document in the list view-> actions->print and also the save.
it gives me a pdf that is half loaded,
these are the logs,