One Record Duplicates Itself in a Table List

I’ve tried to find a reason for only one record in a table list of 8 other records that duplicates itself. I believe this is usually caused by joins that may have a duplicate id. Or something like that…

However, I am having trouble finding a column that might have two IDs or whatever that might cause this anomaly.

Any suggestions of where to look or how to trouble-shoot this?

Thanks!