That would require a rework to the way the icons work and that is already on the devs to-do list
https://pokemonrevolution.net/forum/topic/159019-dev-to-do-list/
Hey, tradable mounts / cosmetics from the PvE Coin Shop change monthly, so its not a bug.
You can follow the current tradable items through the official PRO discords #announcements channel.
Hey, currently its not possible to remove this specific form. We are aware of the issue and there will be an alternative solution in the future once we decided on the ideal way to handle these cases.