Starting a month or so ago, I frequently get the message showing in the attached document when I open certain assemblies.  The error pops up, I click "yes" and the error pops up again.  The error pops up for what I assume is each time the part listed is in the assembly.  The error then pops up again every time I attempt to make a change to the assembly.

Is there a setting I can't find that will make this stop?