On release 5.3.x, under Ubuntu 16.04, I remark that the following fonts are not accessible from the font listing : Dingbats Standard symbol L I have resinstall 5.2.7 : it works perfectly.
Support (i.e. display) of Type1 PostScript and Bitmap fonts has been dropped at 5.3 builds. They will not appear in the Font list for use and will receive generic font fallback substitution when present in a document. Find an alternative font. =-ref-= https://wiki.documentfoundation.org/ReleaseNotes/5.3#Feature_removal_.2F_deprecation