BOM error message V7

I’m getting an error message almost every time I enter the BOM form:

“Warning: Unable to find bom in any table related to BOM”

Does anyone know what this means? I’m on V7, and currently I only have 2 BOM’s in there and I’m getting this warning. Even if I delete those BOMs and re-enter them manually I still get this error.

Note: I "re-purposed" this topic since it was too general, nobody replied, and I've been able to find most of the information about the original subject with more targeted searches.

@Dbone can you share a screenshot?