v18 R2 (OEM)
I have create a DMG for installation of myApp Stand Alone. I download it from my Website in a Customer computer with Catalina.
Copy to the folder Applications.
Then I start MyApp and the system ask me for rights. I give rights.
But after a while I get the message: Would you open the Structure on Read Only mode?
As you can see on the image all Folders Read & Write for all .
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I also have tried giving rights to MyApp in Security & Privacy -> Full Disk Access
With the same result.
I have also changing manually the rights on the folders (after installation) twice with the same result.
I have also done this, in other computer, with the same result.
Any ideas ?