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Your LimeSurvey version: 3.15.8+190130
Own server or LimeSurvey hosting: Own server
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I am experiencing a problem with the pdfReport plugin from Limesurvey.
I want to display the answers to the matrix questions in the generated PDF, but the answers are not displayed. I have checked that the answers are recorded in the question submission by Limesurvey, but they are not included in the PDF. This problem does not occur with other types of questions. What could be the cause of this problem and how can I fix it?

 

Hi,
no, not really.
Neither did not answer the question at the beginning nor did you show what you did.
So please some more explanation, best a lss export of your survey or a prototype that shows the issue.

Joffm 

I have rewritten the question and added attachments.
The first image is how the question is presented by lime survey before generating the pdf, the second image is the pdf and the last image is how I display the results in the pdf

Please, provide a lss export.

The only thing I see is, that you used alphanumerical codes in a scale. 
Probably not related to your issue, but how do you calcualate a mean or other statistical tests.

And I do not see any issue.
Here an example in 3.28.26.
1. The scale
 
2. The preview in LimeSurvey
 
3. The pdf (with some strange colors)
 

Joffm

P.S.
Muss ich wieder unnötigerweise Englisch schreiben?
 

I created this simple example and still see no issue.
 

So there is obviously something wrong in your survey.

But we can't help without seeing what exactly you did.

Joffm
 

3.15.8+190130

Your version of Limesurvey is from 30/01/2019. Só "pre-pandemic". This is ancient in terms of web applications. Not sure if this has anything to do with your issue, but your installation has not received any updates, bug fixes or security patches for over 4 years now. You should really consider to update to the latest version of the LS 3 branch.

Not sure if this has anything to do with your issue

Shouldn't be. I use pdfReport at least since 2019.

Joffm
 

Shouldn't, I agree. However, it can be a problem in this specific version with the specific question type, you never know.

In any way, an update is highly recommended, totally independent of the issue described here.