Comment 4 for bug 1758536

thanks, that worked well.
my original preferences.xml had the entry:

  <group
     id="desktop"
     style="-inkscape-font-specification:'Lucida Console';font-family:'Lucida Console';font-size:53.33333333px;writing-mode:lr;line-height:125%;fill:#000000;fill-rule:evenodd;stroke:#b1d700;text-anchor:middle;text-align:center;stroke-width:7.55905512;d:m 218.44336000000001263, 191.60546999999999684 c -0.54847999999999997, 0.00800000000000000 -1.09078999999999993, 0.23696999999999999 -1.47852000000000006, 0.62500000000000000 -0.39530999999999999, 0.39522000000000002 -0.62500000000000000, 0.95077000000000000 -0.62500000000000000, 1.50975999999999999 0, 0.55900000000000005 0.22969000000000001, 1.11454999999999993 0.62500000000000000, 1.50977000000000006 l 1.76757999999999993, 1.76757999999999993 a 0.51098896000000005, 0.51098896000000005 0 0 1 -0.36132999999999998, 0.87304000000000004 h -14.18553999999999959 -0.00600000000000000 c -0.05800000000000000;vector-effect:none;stroke-miterlimit:4;stroke-dasharray:none">

I deleted the part that says:
d:m 218.44336000000001263, 191.60546999999999684 c -0.54847999999999997, 0.00800000000000000 -1.09078999999999993, 0.23696999999999999 -1.47852000000000006, 0.62500000000000000 -0.39530999999999999, 0.39522000000000002 -0.62500000000000000, 0.95077000000000000 -0.62500000000000000, 1.50975999999999999 0, 0.55900000000000005 0.22969000000000001, 1.11454999999999993 0.62500000000000000, 1.50977000000000006 l 1.76757999999999993, 1.76757999999999993 a 0.51098896000000005, 0.51098896000000005 0 0 1 -0.36132999999999998, 0.87304000000000004 h -14.18553999999999959 -0.00600000000000000 c -0.05800000000000000

and the problem disappeared.
It seems this is probably related to commit:
https://gitlab.com/inkscape/inkscape/commit/0326e4287a1f6a4f52d9a3998adf8670e25c85da

This commit has the following addition to the code in 'attributes.cpp':

/* SVG 2 Attributes promoted to properties */
+ {SP_ATTR_D, "d"},