Two questions...
1) Have you preformed any live updates to the Editors you are using? Give that a try.
2) Are you using the appropriate Editor with the corresponding remote? For example, MX-850 Editor with the MX-850 and MX-800 Editor with the MX-800? Not matching up Editors can potentially cause quirky issues - not always, but I've seen it.
Thank you,
Damon DG
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