photoshop will lost focus, when drag image keep long time

when u press space key and use wacom pen drag move image  in workspace

but will random time but must be happen lost forcus ,and i try to many many time

it's happen on photoshop 2021 and photoshop 2024 also happen.

it's just can do save files  close files  and  open file again 

it's  random happen, sometime fast happen sometime slow.  but press space key use wacom pen drag move image  left and right back and forth fast move, lost forcus will happen fast 

win10+1070Ti+wacom pen