Taking Photo Creates Two Pics

I saw this in my game too when testing the black photo issue.

For me it was only with phone photos though. Seems they are phantom photos that don't really exist. For me they also disappeared after travelling.

I had this happen as well and the next time I took a photograph, one of the copies disappeared from my inventory. I was testing with the camera object not the phone.

Yes, same here. 

I took 5 pictures and had 10 pictures in my inventory. I exited and re-entered build mode, and then I had 5 pictures again.

One of my sims is a Style Influencer. She takes photos daily and sells them to get fame. The game lists all the pictures twice, but I cannot do anything with "copies" because they are unclickable. After travelling or going to work, the "copies" disappear from the inventory. It takes a much longer time and effort to sell or do something else with "originals" when photos are just taken. This happens for a couple of months; my game is always updated as soon as an update is released.

Vanilla, MacOS