I have a refurbished iMac 2019 running Catalina 10.15.6. Initially it was running ver 10.15.2 and when importing photos from a thumb drive the app froze twice on different occasions. i upgraded to 10.15.6 and the app has now froze again just by browsing through the photos. This does not happen constantly only happened once so far. Reports went to Apple and I did call help desk but no positive answer than to submit error report. I have now unchecked "Auto play videos and live photos" to see whether this would solve the problem. I also ran Apple's ram check and no problems were found. Another compliant I have is, why do my videos not play on my 2nd gen apple TV unless they are mpeg4 or m4v? I had 3 videos show up on my Apple TV and I could not understand why just these three. Anyway I found out they were m4v and except for one no idea how the other 2 became m4v. Converting all the videos takes a lot of time. Other than the photo app Catalina os works OK. BTW I still have a late 2009 iMac running Yosemite which never gave me a problem. The new iMac replaced it, should I have?
Thanks,
Thanks,