Comment 6 for bug 1734624

One more piece of information: I have removed the two files from ~/.config/inkscape/extensions/ and tried: Extensions -> Render -> Latex ... In the dialog box I wrote $1$ and clicked Ok. This yielded the following error:
=========================================================================
 *** WARNING - the DELAYBIND command has been deprecated, and will be

               removed in the next version. For now you can restore

               the behaviour by using -dREALLYDEALYBIND but if you

               require continued use of this command you should contact

               the Ghostscript developers. Commercial customers of

               Artifex should email their support contact, free users

               are encouraged to talk to us on the #ghostscript IRC

               channel on irc.freenode.net.

Unrecoverable error: undefined in DELAYBIND

PostScript/PDF Interpreter finished. Return status 65280 executed command : /opt/local/bin/gs -q -dDELAYBIND -dWRITESYSTEMDICT -dNODISPLAY -dNOEPS /var/folders/h5/ggrnw90x4cjfl4jzs4r1rq080000gn/T//psin7kg5iX

The interpreter seems to have failed, cannot proceed !

Traceback (most recent call last):
  File "eqtexsvg.py", line 160, in <module>
    e.affect()
  File "/Applications/Inkscape_0922.app/Contents/Resources/share/inkscape/extensions/inkex.py", line 283, in affect
    self.effect()
  File "eqtexsvg.py", line 154, in effect
    svg_open(self, svg_file)
  File "eqtexsvg.py", line 81, in svg_open
    doc = inkex.etree.parse(filename)
  File "src/lxml/lxml.etree.pyx", line 3427, in lxml.etree.parse (src/lxml/lxml.etree.c:79801)
  File "src/lxml/parser.pxi", line 1782, in lxml.etree._parseDocument (src/lxml/lxml.etree.c:115995)
  File "src/lxml/parser.pxi", line 1808, in lxml.etree._parseDocumentFromURL (src/lxml/lxml.etree.c:116345)
  File "src/lxml/parser.pxi", line 1712, in lxml.etree._parseDocFromFile (src/lxml/lxml.etree.c:115233)
  File "src/lxml/parser.pxi", line 1115, in lxml.etree._BaseParser._parseDocFromFile (src/lxml/lxml.etree.c:109930)
  File "src/lxml/parser.pxi", line 573, in lxml.etree._ParserContext._handleParseResultDoc (src/lxml/lxml.etree.c:103404)
  File "src/lxml/parser.pxi", line 683, in lxml.etree._handleParseResult (src/lxml/lxml.etree.c:105058)
  File "src/lxml/parser.pxi", line 613, in lxml.etree._raiseParseError (src/lxml/lxml.etree.c:103967)
lxml.etree.XMLSyntaxError: Document is empty, line 1, column 1

===================================================================

This is now without using the textext extension. It seems that the issue in ghostscript now..?