Hi William,
On Tue, Sep 25, 2018 at 10:54:23AM +0000, PG Bug reporting form wrote:
> In pgAdmin4, with two query windows docked side by side - if you close the
> right hand bar, both windows close - losing data of the left window.
pgAdmin has a dedicated support mailing list:
https://www.pgadmin.org/support/list/
Thanks,
--
Michael