P: KBSC [ F ] for full screen returns to regular view when second screen is active

afteer the last update the funcionality of the F key didn't work if you are using two monitors, but it still works with one. That is very dissapointing cause you lost a lot of time not having the gird with all the tumbhails in one screen and the full image in the other. is there other people with the same problem.

I too am having same issue since LR Classic was updated recently to 12.3. Like others, it works fine if not in dual screen mode but with second screen selected it flashes briefly and retuns to normal view.

I am encountering the same issue. Disabling the GPU has no effect.

I too work with two monitors and just discovered that if within LR, I deactivate the second monitor, selecting F does generate the Full-Screen image on the primary screen.

Hi:

Selecting the F to display an image Full Screen is misbehaving.  It flickers on for 1/2 a second and returns to the eg. Grid View.  Holding down the F key doesn't hold the image on the screen, either.  This has been happening for several weeks.

Closing and relaunching LR remedies the issue... occasionally.

Miguel

I'm one of those people with a single ultrawide monitor who keeps the Secondary Display window off to the side of the main LrC window (i.e. both windows on the same display surface) so there's always a grid view available while in Develop mode.  As others have reported, as of v12.3 the Secondary Display window is very eager to disappear whenever I pretty much do anything in LrC that doesn't directly involve the Secondary Display window.  This new behavior is indisputably a productivity regression for me and is thus a Big Deal, so I reverted back to v12.2.1 and the behavior immediately went back to normal.  Like others, I will stay on v12.2.1 until Adobe fixes the bug behind all this.

Prior to reverting, I saved the output I got from Help > System Info... while I was still on v12.3.  Here it is:
https://1drv.ms/t/s!ArbBzZ6J9ixPtdFtR3frIXW6zatURA?e=Coc2wC 

LRC 12.3, Windows 10.

Pressing "F" key to enter preview briefly shows the image full screen, but then immediately reverts to previous screen mode (Library or Develop)

Bugf still present after quitting application or complete power cycle of PC.

I have this issue for years on and off of the secondary display not staying open. Very annoying.

Secondary display I have open but when I go to another app then back the secondary display closes. If I do masking or enhance the secondary display closes plus other things does the same thing. This has been plaguing me for a few years and it is very annoying. To mention this does this for a few weeks then the secondary display stays open no matter what else I do which is what it should do. Now this goes through this cycle of working fine then not so why it is good then not is a mistery. Again very annoying because having to keep reopening the secondary display is a big why. Yes I can just hit F11 to open but I use the key board function keys for specific things,I have them switched to Logioptions function. To switch logioptions off then hit F11 to open secondaryt display then switch back on the logioptions is very cumbersome. It seems to be in updates this introduce this problem then another update the issue goes away over the last few years.

Same problem with F fullscreen, I'm back to version 12.2.1 and waiting for a fix from adobe