Maximised wondows by default

Not sure of this is the right board, but it's systme wide, rather than specific.

I'm currently running 2023.6.0, and this week every window opens in minimised view every single time, even in the same action (eg.. open order, maximise, convert to invoice, maximise again).  I have not had this happen previouly, maximising window usually carried thorugh whole system.  Is this abe to be reverted to previous?  It's annoying.  Has been heppening since Monday 7/8/23