If you are removing breakers, an LWHEM or LDATA from the My Leviton app as a troubleshooting step, please call technical services for assistance, you should not need to remove a hub or breaker.
When resetting an LWHEM or LDATA it is recommended to use the Delete Breaker option for all of the connected breakers. If breakers are not deleted prior to removing the hub they may require additional steps including a factory reset prior to re-enrolling.
Depending on the installed equipment and app revision there may be slightly different flows. Both variations are shown with an "OR" between the screen shots
From the Load Center or Manage screen press Panel View: