Hi, I am trying to re.install an app. I downloaded the app from the manufacturer as it is not available in the app store. I doubleclick on the .dmg and copy the app into the applications folder. Then I get an error message telling my that the task cannot be completed because O have not the required rights for the app. I am signed in with administrator rights. I can install any app, except for this one. The app runs fine if I start is from the .dmg directly. The issue is not the app itself. This all happened after I tried to re-install the app. The previous app does not exist anymore. What could be the cause and how to mitigate?
Macbook Pro M5 with Tahoe 26.6.2
The app in question is the Ugreen NAS client