Premiere Pro 2021 Not Lunching 2017 iMac Catalina

[default3d0a2m8u8021]

Hello, Apologies this sounds very familiar, but I havent found an appropriate match on the database here yet.

iMac (21.5-inch, 2017

2.3 GHz Dual-Core Intel Core i5

16 GB 2133 MHz DDR4

Intel Iris Plus Graphics 640 1536 MB

Until recently I have had no problems opeing Premiere and running light edit sessions. For the past few months however I have barely been able to open/launch Premiere without restarting, force quitting several times, often driving me to bail altogether. When I click on the icon, either nothing happens - not even the bouncing icon, or eventually it does launch the opening loading graphic windo, but never launches the application.

[Ann Bens]

Your machine is not powerful enough to run 2021 and most likely trying to edit highly compressed footage such as H.264/5.

https://helpx.adobe.com/nl/premiere-pro/user-guide.html/nl/premiere-pro/system-requirements.ug.html.

[default3d0a2m8u8021]

Thanks for the suggestion Ann! Per the link you supplied, my system meets the requirements, and the issue is failure to launch - not even getting to the point of importing any media. I haven't had this issue previously, so I'm surprised it has become a new issue.

[Ann Bens]

Have you.

Trashed preference?

Deleted media cache?

Reinstalled the program?