Hello there,

we're experiencing some issues during statistics export after several updates that were performed using comfort updater. Precisely PDF export including statistics graphics doesn't work for us and export to excel at all. Export to HTML and to PDF, when statistics graphics are not included, seem to be working.

We patched from 5.4.8 to 6.2.6 and then to 6.2.7. On 6.2.7 the issues have been reported by out customer. I patched to 6.2.9, but the issues still persist. The major update was performed manually, for the updates to 6.2.7 and 6.2.9 the comfort updates was used.

During the major upgrade https://manual.limesurvey.org/Installation_security_hints/de#Setzen_von_Berechtigungen_auf_einem_selbstverwalteten_Linux-System has been considered. But this had blocked the comfort updates as it issued, that several files were not writeable. So I had to set the following file permissions additionally:

find application -type d -exec chmod 0750 {} \;
find application -type f -exec chmod 0640 {} \;
find tmp -type d -exec chmod 0750 {} \;
find tmp -type f -exec chmod 0640 {} \;
find upload -type d -exec chmod 0750 {} \;
find upload -type f -exec chmod 0640 {} \;
find assets -type d -exec chmod 0750 {} \;
find assets -type f -exec chmod 0640 {} \;
find docs -type d -exec chmod 0750 {} \;
find docs -type f -exec chmod 0640 {} \;
find locale -type d -exec chmod 0750 {} \;
find locale -type f -exec chmod 0640 {} \;
find tests/unit -type d -exec chmod 0750 {} \;
find tests/unit -type f -exec chmod 0640 {} \;
find themes/survey/fruity_twentythree -type d -exec chmod 0750 {} \;
find themes/survey/fruity_twentythree -type f -exec chmod 0640 {} \;

This way the comfort updater is happy, but I don't know if this bricked the statistics export utility.

Unfortunately no error is logged in vhost error or PHP logfile.