Lightroom 4.3 on MacBook Pro Retina + Cinema Display: Cannot use Slideshow, get "An error occurred when attempting to change modules". OS X 10.8.2, 16Gb, 2.7 GHz Intel Core i7. Approximately 30 seconds from installation to finding this bug.
Sorry, Alexey, I have seen that suggestion elsewhere and it is not working for me.
I rebooted (without the second monitor), tried Slideshow and it worked. Quit Lightroom, connected the second monitor, launched Lightroom and immediately got the same error (because it was still in Slideshow mode). I also tried making sure that Lightroom was in Library mode before quitting when the secondary display was not hooked up, then starting Lightroom but again, going into Slideshow mode generates the same error.
Adobe QA please note the ease with which this can be reproduced.
I am seeing this issue too. Mac Mini with two HP displays. It would be great to get a response that this is known as an issue and is being looked at as a bug. I work with two monitors as my default setup, so the workaround of detaching/reattaching monitors is no good. It (monitor fiddling) is so disruptive that I didn't try it. Probably the best workaround is to roll back from Lightroom 4.3 if that is possible for you. I will try that.
I got it with the upgrade to LR 4.3. I've cleaned out all parameter files (com.adobe.Lightrrom.plist) etc, deleted the app and all files I found, installing a fresh LR4.3 gives the same error. Downgrading to 4.2 and it all works again.
Creating a new user and then start LR4.3 the slideshow works (?). I've tried to copy all parameter files form the new user to my account but it still doesn't work. Since LR4.3 does work on a fresh account it must be something with a parameter files somewhere. I've three monitors hooked up (the third through a USB-DVI box)
Same problem with two monitors attached. Tried all suggestions and the only solution that worked is disconnecting the 2nd monitor. Not ideal during a busy day!
Hello, I have the same problem. Everytime I click Slideshow, I get this error message. I have tried this with empty Catalog and it didn't work. So there must be some error in the App itself.
It's marked as In Progress, so yes they're working on it. Hopefully it'll be fixed in 4.4, but you can roll back to 4.2 for now if it's causing a problem in your workflow. Just uninstall 4.3 and install 4.2 again. You'll find the download links by googling "Lightroom 4.2 download".
_______________________________________________ Victoria - The Lightroom Queen - Author of the Lightroom Missing FAQ & Edit on the Go books.
The slideshow module in LR 4.3 doesn ́t work.
When I click on "slideshow" or "book" there is a dialog window telling me, that there is an error at trying to switch between the modules. Ok button, nothing else happens, grey instead of the module.
I ́m using LR 4.3 on Mac OS 10.8.2
I tried the last Version of LR, but there ́s everything ok.
A reinstall of LR 4.3 doesn ́t help.
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