maybe removing and re-adding the activity would fix the problem. the 890pro has a different account type in the harmony database than all the other remotes. you cannot properly convert an 890pro account to use any other type remote. no doubt there is also some quirks when converting an account for an 890pro model.
best thing to do for 890pro remotes is always to setup a new account instead of "upgrading" an existing account.
best thing to do for 890pro remotes is always to setup a new account instead of "upgrading" an existing account.