Obviously you takes your chances with beta, which is why I have 3 backups...well 2 1/2 (long story). I also keep my data, including 5 virtual machines, on a separate drive from the OS, which is on an SSD (because SuperDrive is for suckas!). I'm not complaining about anything, nor am I particularly adverse to reinstalling, I'd just like to figure out what is causing Preview to fail, because my security badge says I'm an IT Specialist and I might see this again on a client's computer.
So far all I'm getting here is "Preview can't possibly fail!" – a bold and definitive statement that no tech professional would ever make about anything, and "You shouldn't use beta," which is just shorthand for "I have no idea how to address your issue". I shouldn't have even mentioned beta, it's like telling people in a general forum you're on a Mac...you'll get no response except "You should get Windows!" Clearly this is going to be another mac-forums login I'm going to completely forget about.
Again, not testy, just unimpressed.
I didn't say once you where "testy" and even stated I wasn't saying you where complaining, I was just pointing out the problem with Public and Beta's, because there was NOWHERE that you said, you had backups, or similar.
If you have a backup, why not use that to fix the Photo's issue, instead of bleating out, that you will wait until Apple push out the update, and make it seem like you where complaining !!
As to the Preview issue, have you tried to get rid of the Preview .plist ??
Make sure Preview is completely closed ⌘Q and navigate to
Code:
/Users/TattooedMac/Library/Group\ Containers/com.apple.Preview/Library/Preferences/com.apple.Preview.plis
where TattooedMac = yourUserName and drag that to your Desktop, now restart your Mac and open Preview. A new .plist will be created. See if that helps.
If it does, trash the .plist on your Desktop, and go about your business. If not put the .plist back, click 'replace' and we go onto the next part of fault finding.
Oh, have you tried to reset
SMC and/or
PRAM/NVRAM ??