so this horse displays a gen 1 trophy https://horsephenomena.com/horses.php?id=292693

where this horse has a 500k trophy  but used to have a gen 1 trophy https://horsephenomena.com/horses.php?id=290369

both are store brought?

I have this as well (missing the Gen. 1) trophy on a bunch of horses as well. It seems it happens most frequently when multiple horses are bought from the store at once in bulk.

If you bought it recently and you don't have the Gen 1 trophy, then I will let the programmer know. A month or so ago, we did have an issue with animals not getting the trophy if they were bought in multiples, like FWF said! But that is now fixed. Please send me any animals which don't have the proper trophies and I will fix them manually :).

Its my older brought horses who were brought in bulk. Only got confused because I know they all had the trophy for 1st gen originally. 

I'll message you the list Sam 

Doods...There's definitely a news post about this...If you are missing trophies, message me the IDs and what they should have and I'll fix it :P

Part of the glitch was when people were buying from the store in bulk...only the first one of the bulk order ended up with the Gen 1 achievement for a week or two until the programmer fixed it.

^ what she said

 Blitz I posted this before the news item went up ;) 

Actually several posts have been made in regards to this issue, under site news. Going back as far as June, possibly further back. :)

Paints since 6-8-14