re: labeler - that is something you might want to bug Dymo about for new drivers as well.
re: dead tiles - mine usually disappeared (in 15007 build particularly) after a reboot. But they kept coming back, and I could not trace it down 100% but it seemed to be only after cold starts they would appear, and after a reboot they wold go away.
However, I also had Fast Startup enabled on that machine, and I think it was very subtley saving desktop settings that I did not save in build 15007, as evidenced by other users in here as well. If yours is doing the same thing, showing dead tiles on cold boots but not after a restart, see if Fast Startup is enabled.
If it does it regardless, well, then, hmmm, I'm not sure what else to try, other than the fix (in build 15007) for the audio issues - that seemed to fix a whole slew of things, not just audio.