P: Can not exit/switch Full Screen Preview (F Key) mode (LR Mac)

I've opened it as there are multiple people still reporting it.

Anyone who wants to roll back to 5.3, link is here: http://www.adobe.com/support/download...

This one:
http://feedback.photoshop.com/photosh...
is closed so I have to open another one.

I've tried all the tips mentioned in the link above - nothing worked.

I'm using a second monitor also. Deleting all files disconnecting, starting LR, prisoned in fullscreen - not able to go back to the "G" Gridmode.

Any other tips (maybe a DL-Link to 5.3)?

Since updating to LR 5.4, The fullscreen modus (F) doesn't work, i.e it's impossible to leave this modus and I have to completely quit LR.
(MacBook Pro 10.9.2)
Is there a solution?

I've tried all the above mentioned tips - nothing worked.

I'm using a second monitor also. Deleting all files disconnecting, starting LR, prisoned in fullscreen - not able to go back to the "G" Gridmode.

Any other tips (maybe a DL-Link to 5.3)?

I did manage to recover from this without deleting my profile. I have a second monitor that I use when I'm in my office. After I connected that monitor and restarted Lightroom I was able to go in and out of fullscreen mode with no problem. I closed lightroom and then disconnected my monitor and the fullscreen mode stated behaving normally for me on my laptop.

I'm guessing that some setting got stuck in a weird state when previously disconnecting my monitor and started causing the weird fullscreen behavior.

I too am having the exact same issue. OS X 10.9.2

I'm also getting this problem. Deleted both Library/Caches/com.adobe.Lightroom5 and preference files and still not resolved.

It seems like Lightroom thinks that, even after I press 'Esc,' I'm constantly pressing 'F' button.

Can someone tell me how to delete user profile and what is the implication of that? Thank you.

I'm having this same issue. I upgraded to 5.4 a couple of days ago and just this evening I found that I can't exit full-screen mode. The only way I've found to recover is to quit Lightroom.

I tried deleting the caches as mentioned above with no luck. I'd rather not delete my preferences, but I temporarily renamed the preferences files. No luck, though, LR still remembered where my catalog was on startup and still has the fullscreen bug.

Great, thanks for the update

Thank you for the suggestion on trashing the preferences. I did that once and it did not have any effect.

I created another user account on the same system and tested LR again. It did not occur under the new account. So it appeared to be isolated within my user profile.

I deleted the user Library/Caches/com.adobe.Lightroom5 folder and its contents. I also found and deleted another folder that was named 5.3. It contained the debug, transport logs and other files for LR. I also deleted the preferences one more time.

Upon launching LR, it prompted for a location and new catalog as if it was a fresh install.

Problem solved.