A mistake in Farm Section on Devnet

A problem I saw in Farm section. That is → For example when I add farm Cmdx and silver 500LP and start earning. Everything is fine until here. But When I do second time add farm 100 LP and start earning. Bonded section show only 100 LP. I could not unbound all. Only last piece of LP I can unbond.

I could not put all screen shots. I hope I could explain enough.