Affected versions:

• texstudio 2.11.2+debian-1 and 2.12.6+debian-2 (and probably any other version)
• libsynctex1 2017.20170613.44572-8+b1

Affected OS: Debian Buster, 4.14.0-3-amd64 #1 SMP Debian 4.14.13-1 (2018-01-14) x86_64 GNU/Linux

How to reproduce: On closing the internal pdf viewer, be it manually by the user or be it by recompiling the document, the internal PDF-Viewer crashes.

Cause: This is caused by the synctex-package. But this problem cannot be solved by turning synctex of by changing the command to -synctex=0.

Solution: It can be resolved by doing a downgrade:

aptitude -t stable install libsynctex1

which will install the version 2016.20160513.41080.dfsg-2 You might have some struggle to resolve downgrade conflicts.

Note: Since nobody has really reported this particular bug and because of laziness, I put this little guidance here to maybe help somebody who is desperately searching for help.

Source of title image: TexStudio Twitter