If imx6 hardware is able to run on a mainline kernel and use a more modern code stack the platform as a whole will benefit from other changes and improvements to Kodi and Linux graphics. Right now Kodi is the top layer of a "house of cards" that balances precariously on a vendor hacked Linux kernel. Our long standing challenge and general beef with SolidRun is that there are unresolved issues and the sole developer they have supporting their community efforts never appears to fix anything that benefits us, and never upstreams or publishes any of his patches. I have no idea whether moving up to a mainline kernel will "fix" your issue or others, but imx6 things either change in the near future or we throw support under a bus and reverse over it a few times to make sure it's properly dead, then we go focus our energies on other more supportable silicon.
IMHO .. stick with vpeter's images for now. The first two? OE 8.0 releases for imx6 didn't even boot (bad images) which should give you an indication of how much testing was done before release.