I get weird results, the arrowhead points in wrong direction and is very tiny compared to the size it was meant to have.
Here is the .svg code from the saved file (pil.svg) made in Inkscape 0.92 for Mac OS
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<svg
inkscape:version="1.0beta2 (2b71d25, 2019-12-03)"
id="svg8"
version="1.1"
viewBox="0 0 462.85062 100.67344"
height="100.67344mm"
width="462.85062mm"
sodipodi:docname="pil.svg">
<defs
id="defs2">
<marker
inkscape:stockid="Arrow2Lend"
orient="auto"
refY="0"
refX="0"
id="Arrow2Lend"
style="overflow:visible"
inkscape:isstock="true">
<path
id="path853"
style="fill:#000000;fill-opacity:1;fill-rule:evenodd;stroke:#000000;stroke-width:0.625;stroke-linejoin:round;stroke-opacity:1"
d="M 8.7185878,4.0337352 -2.2072895,0.01601326 8.7185884,-4.0017078 c -1.7454984,2.3720609 -1.7354408,5.6174519 -6e-7,8.035443 z"
transform="matrix(-1.1,0,0,-1.1,-1.1,0)"
inkscape:connector-curvature="0" />
</marker>
<marker
inkscape:stockid="Arrow1Send"
orient="auto"
refY="0"
refX="0"
id="Arrow1Send"
style="overflow:visible"
inkscape:isstock="true">
<path
id="path847"
d="M 0,0 5,-5 -12.5,0 5,5 Z"
style="fill:#000000;fill-opacity:1;fill-rule:evenodd;stroke:#000000;stroke-width:1pt;stroke-opacity:1"
transform="matrix(-0.2,0,0,-0.2,-1.2,0)"
inkscape:connector-curvature="0" />
</marker>
<marker
inkscape:stockid="Arrow1Mstart"
orient="auto"
refY="0"
refX="0"
id="Arrow1Mstart"
style="overflow:visible"
inkscape:isstock="true">
<path
id="path838"
d="M 0,0 5,-5 -12.5,0 5,5 Z"
style="fill:#000000;fill-opacity:1;fill-rule:evenodd;stroke:#000000;stroke-width:1pt;stroke-opacity:1"
transform="matrix(0.4,0,0,0.4,4,0)"
inkscape:connector-curvature="0" />
</marker>
</defs>
<sodipodi:namedview
showgrid="false"
inkscape:document-rotation="0"
inkscape:current-layer="layer1"
inkscape:document-units="px"
inkscape:cy="-33.787703"
inkscape:cx="722.89047"
inkscape:zoom="0.35"
inkscape:pageshadow="2"
inkscape:pageopacity="0.0"
borderopacity="1.0"
bordercolor="#666666"
pagecolor="#ffffff"
id="base"
inkscape:window-width="1440"
inkscape:window-height="804"
inkscape:window-x="0"
inkscape:window-y="23"
inkscape:window-maximized="0" />
<metadata
id="metadata5">
<rdf:RDF>
<cc:Work
rdf:about="">
<dc:format>image/svg+xml</dc:format>
<dc:type
<dc:title></dc:title>
</cc:Work>
</rdf:RDF>
</metadata>
<g
id="layer1"
inkscape:groupmode="layer"
inkscape:label="Lager 1"
transform="translate(141.37191,110.50081)">
<path
style="fill:#000000;fill-opacity:1;stroke:#000000;stroke-width:3.565;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1;marker-end:url(#Arrow2Lend)"
d="m -141.36309,-96.761905 458.10714,2.267858"
id="path830"
inkscape:connector-curvature="0" />
</g>
</svg>
I’ve tested to open the file in SVGMaker and it renders correct there.