Can you try this on a FRESH AEM 6.3 instance - this will tell us:
A - bug in AEM version or
B - there is something wrong in your specific instance.
Hi there,
we are also experiencing this problem as described above.
We are using an AEM 6.3 Cloud Instance ( https://author-***-prod63.adobecqms.net/ ). Copy & Paste usually works one or two times in RTE, after that, the usual hotkeys CTRL+C and CTRL+V stop working. Sometimes, it works when flooding the system with lots of those keypresses, but that seems to be a rare and random case. It is as if something tries to re-define what these hotkeys do, but fails to do this reliably. Possibly scripting-related.
Environment is: Windows 10, tested build 1709 and 1803.
Browsers tested: Chrome, Mozilla Firefox (Firefox seems more problematic than Chrome)
Unfortunately, I cannot disclose any more information about the AEM installation in question, it belongs to our customer and we are editing content "only".
If I should post a bug report, please provide a link, if that is even possible for an AEM instance that officially isn't really our own.
Thanks in advance for any help you can provide.
Mark
