What gameplay feature is this bug affecting?
Trading to my other account

What's the issue? Please include any error messages you receive and as much detail as possible.
I have a lioness that isn’t pregnant or in a trade, doesn’t have a role that I can’t trade to my other account, other lions have done this before too, it seems only lions that have had something done with them (traded, assigned to something, etc.) are the only ones viewable when trading lions to my other account.

Any links relating to this bug? For example, if a particular lion is bugging, what is the link to that lion?
https://www.lioden.com/lion.php?id=794206349726

Any screenshots you can provide us with?
Nope, sorry!

Please provide us with step by step explanation how this bug happened so we can attempt to replicate it. If it's complex, please include screenshots where possible:
I’m not sure when it first started happening but I noticed whenever I tried trading lions some wouldn’t show up even though they aren’t in any roles and aren’t pregnant, etc. I’ve agreed to give someone a lion then I have to cancel because it didn’t show up in the trade box.