I have discovered a strange bug.
For inventory items, I have setup a custom field called “category”, type is “drop-down list”, with five options (Option 1, Option 2, Option 3 etc). Every inventory item has one of these options set.
I went to Reports / Inventory Price List and chose “filter by custom field”, and chose “category”. On the drop down filter selection next to it, I am seeing duplicates of most of my options (Option 1, Option 1, Option 2, Option 2, Option 3, Option 3 etc).
Selecting the first instance of Option 1 in the filter shows 10 products on the resulting report. Selecting the second instance of Option 1 shows the remaining products on the resulting report, excluding the 10 previously shown.
I am running the cloud version of Manager, so I have not been able to cause this myself. I checked my backups and the problem was present in September 2017, but not in March 2017, if that helps.