*** This bug is a duplicate of bug 167335 ***
https://bugs.launchpad.net/bugs/167335
Known issue, already tracked in
Bug #167335 flowed text has no SVG 1.1-compliant fallbackā
https://bugs.launchpad.net/inkscape/+bug/167335
See also:
Moving this to inkscape, as the generated SVG file can not be validated
[1], probably that is why other apps can not render it. The error
message is: Line 58, Column 89: SVG element flowRoot not allowed as
child of SVG element g in this context. (Suppressing further errors from
this subtree.)