Strange behavor of b&c wallet when creating new bks address

I created a new address in my B&C wallet some weeks ago and transfered some bks to it. I gave the address a name. Today I can’t find the address in “receive” page, but can see it in coincontrol with no name.

I created a new address in my B&C wallet some days ago and today I discovered that the wallet used an existing address.

These are not expected behvior I suppose.

My wallet has hundreds of bks addresses with the name “Converted NuShares”, most has no fund in. Does this have anything t do with the above strangeness?