SUMMARY I'm currently having troubles with the QuickPreview tool. (not the LivePreview one) When setting it to XeLaTex (in order to manage packages like polyglossia), it behaves as follows : - When using it on an environment : kile uses pdftek instead of xelatex. Of course, it doesn't work. - When using it on a sub-document : kile uses xelatex, as expected, and... it works (as expected) This doesn't depend on the content of the document. I observed the same behavior with LuaLaTex settings. Setting "Quickpreview" to "XeLaTex" or to "XeLaTex + PDF (okular)" doesn't change anything. I had really no idea to fix the problem, as QuickPreview settings are (I guess) not in kilerc file. So : how could I fix it ? Any idea ? Is it an internal bug in the definition of quickpreview ? Thanks for your help ! J STEPS TO REPRODUCE 1. In config panel, Preview > Set first parameter to "XeLaTex" or "XeLaTex --> PDF" 2. Run a quickpreview of an env with the package polyglossia : it runs the following command : pdflatex -synctex=1 -interaction=nonstopmode -output-directory=/tmp/kile-livepreview.ozSfBF modele.tex 3. Run a quickpreview of a subdoc : it uses xelatex : xelatex -interaction=nonstopmode preview.tex OBSERVED RESULT As expected : 2. does not work, because it used pdftex 3. does work, because it used xelatex EXPECTED RESULT We expect 2. to use xelatex, and not pdftex SOFTWARE/OS VERSIONS Linux/KDE Plasma: 5.13.19-2-MANJARO (64 bit) KDE Plasma Version: 5.25.5 KDE Frameworks Version: 5.98.0 Qt Version: 5.15.6 ADDITIONAL INFORMATION