When trying to create a new blacklist for iOS apps the choose an app just keeps spinning, even entering in the ID doesnt work. Android apps are fine just all of iOS.
That was my first thought, ive tried in FF ESR, Chome, IE and Edge, all the same result. Tried on two different PC's same thing...
I am also having this issue when searching for apps in lots of places (blacklist, whitelist, adding apps to the app catalog.) I am going to file a bug report.
This issue is currently known with our development team and will be resolved shortly. I will try to update this thread when it is resolved. Thank you for your patience!
A temporary workaround is to act like you are adding a new app to your app catalog and grab the identifier from there and manually insert it into where you need it (the blacklist policy).