Hello,
I have published an add-on via producer portal successfully. I have published it as Private to test if it would work well and I if I can install/uninstall it. The add-on compatible with Adobe Illustrator version 20 and higher.
The add-on appeared in my add-ons here https://creative.adobe.com/addons/my_addons
If I click on "Install" button, the page redirects and says the add-on has been installed.
But if I open Creative Cloud application 3.9.1.335, there is nothing related the installed add-on. It has to show me a notification and a new record has to appear in activity stream section
As a result nothing appeared in Illustrator. I'm using the latest Adobe Illustrator 2017.0.1.
The same result if I remove the add-on. it just redirect a page and says it's been removed without any notification in Creative Cloud app.
Just to be sure Creative Cloud works well, I tried to install another add-on "QR Code Marker" I've found in the library.
It's been installed successfully!
What could it be? What could be wrong? Please, let me know if I need to provide more details.
1 Correct answer
The issue is no longer reproducible. Adobe fixed the issue.
Thanks Adobe for "answers"! 
2
Replies
Hello,
It seems I've found the issue but I still don't know how to solve it.
My add-on is compatible with Adobe Illustrator beyond 2015.3 (20.0). Due to this fact "manifest.xml" file looks like:
If I change "Version", for instance, to "17.0", it will work perfectly!
I've tried to use all versions of Illustrator and found that the latest version acceptable by AdobeExchange is 19.2! So we aren't able to publish add-ons compatible only with versions above 19.2. Does anyone know what's going on there?
The issue is no longer reproducible. Adobe fixed the issue.
Thanks Adobe for "answers"! 
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