Comment 4 for bug 1769669

that the psplash.img file has any influence on this is very unlikely (it just sits there on disk and gets loaded along during boot ... it also never changes)

what i notice though is that a custom u-boot branch is being used instead of the official upstream repo at https://denx.de ... but it seems the "source-branch:" parameter in snapcraft.yaml points to a non-existing branch in that custom repo ... not sure what snapcraft does here during build, but my suspicion would be it falls back to master if it can not find the defined tree ... if that is true it would mean you get the latest development source of u-boot from that tree (it seems to be synced with denx.de's master tree) and thus also the experimental changes and features from there.