Error occurs unpredictably when uploading more than 2500

[theskipjack]

Facebook Python Business SDK Issue

Some one from the following support channel directed me here for bugs related to the SDK. (https://developers.facebook.com/support/bugs/).

Here is the link to the support request I made in that channel, in case it's helpful to you.

https://developers.facebook.com/support/bugs/1383676645783862/

I'll attach a demonstration of the bug I am encountering. The overview is that I'm attempting to update an adset with a long list of zip targets. The attached video shows me successfully updating with 4000 zips; then attempting to update the same adset again with a subset of 3500 of those zips (all 3500 zips were included in the first list of 4000), and getting an error that my audience is too narrow; then I remove another 500 zips from that 3500 and update with 3000 zips (all 3000 were included in the previous list of 3500) and the update is successful. This behavior seems to be a bug, and the error response seems to be inaccurate as there's no possible way a given list of 3000 zip codes could have a broader audience than another list which is made up of that same list of zip codes plus an additional 500 zip codes.

Note: I have never experienced this issue at all when uploading a list of 2500 zip codes or less; this seems to only occur when the list of zip codes is long enough to warrant the creation of a location_cluster.