Could you try switching Touch Action off and see if this helps? Should you still experience issues after this, kindly get in touch with our Support Team at http://nanoleaf.me/hello so they can further investigate this and work towards a resolution.
Ah, good idea. I just touched it and the effect looked very much like the one that is happening intermittently. I have now turned it off and will report back to let you know whether this has worked around the issue.
Thanks for the confirmation, glad that the solution helped!
There could be a number of factors that could trigger this and it can be difficult to pinpoint the exact cause with little information. However, if you ever come across this issue again, you can always get in touch with our Support Team via the link I provided and they would be happy to help.
For anyone else with this issue that may be following, I received this response from support:
This is a known issue(ripple effect) and it's fixed in the Shapes 6.2.3 firmware, which will be released soon.