Try restarting the computer. Then try launching the app. After launching the app, check System Preferences Security tab again. I had a similar issue installing some Intel software which required a driver/extension. After the reboot the software just worked.
Welcome to the official subreddit of Bluestacks. BlueStacks App Player lets you run mobile apps fast and fullscreen on Windows. Download for free. Create two folders. One will receive files from bluestacks 32b and another will receive 64b files. Create a backup from your 32b and 64b and save them inside of their respective folders (step 1) Inside the 32b folder, you will open BlueStacksBackup0000000 Engine Android and copy the files: Data.vdi.
MacOS Catalina release date MacOS Catalina launched on October 7, 2019, and now you can download it for your Mac. That release date is a little later than what we have seen in recent years, where the main versions of MacOS have usually been released in September, although it is not unprecedented.
If you are running macOS 10.15 Catalina, then maybe the software isn't compatible or some new Catalina security feature is blocking it. I haven't used Catalina yet, so I cannot advise you further on it.
You may need to contact the publisher or developer of the software for assistance.
How To Allow Bluestacks On Mac
Oct 20, 2019 6:51 PM