Photos - Slideshow is systematically put back into MAGNIFYING GLASS?

I'm on Windows 11 pro, version 25H2 Builder 26200.7309
- in Photos (the default app in Windows 11)  
- the 

  Image slideshow remains in focus  

  
- CLOSE-UP and impossible to change to normal (WITHOUT MAGNIFYING GLASS)
 

 how to do
can this be corrected in the registry directly?
 
1) We only see part of the image , so NO INTEREST
2) it is BLURRY
 
so
a) I reset the settings and started again 3 times, nothing changes???
b) I restarted the PC twice, nothing changes???
Windows 11 systematically puts me back on track
 
thanks in advance for the solution  
otherwise what little software would do that too?