When drafting, I'm getting a "Duplicate gloss found" error:

But I only have one gloss "INSTR2":

Does this have something to do with the allomorphs? What might I do to fix it?
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More on this--If I look at the SPEC clitic in the target lg:

Now, if I use the "try a word" in the parser, I only get one result for this word:

But this word will not synthesize in the Live Rules Tester, even though the Target Text is correct:

I don't understand what is going on here and how to troubleshoot it.