I had the same symptoms, where my imported SVG image would not show up on API 26+, but it turned out to be an issue with the complexity of the source SVG. I opened the SVG in Inkscape, found a particularly complex path in the image then:
Extensions > Modify Path > Flatten Beziers...
As mentioned here: SVG: simplify path to remove curves?
After re-importing the SVG it worked fine.
