Hello.
There is such a table:

With it, a report is made like this:

There is such a problem: in some cases, an error occurs in chrome:
Failed to download PDF document
In firefox there is no such error, and pdf is displayed correctly.
Began to watch the database, localized the problem.
If the column original_text more than 34 characters, then this error occurs.
However, specifically the data of this column does not participate in the formation of pdf.
I can not understand what the problem is.
Update
The reason is not specifically in the original_text column. The campaign mpdf is limited in the length of the string that needs to be translated into pdf. Specifically in Chrome. It is displayed in the call center, however, a warning about "Possible incorrect output" is displayed.
Update 2
Once again, I checked everything. Indeed, if the database has too large values (string length), then this error takes off. How to fix it is not clear.