I've encountered an issue where a swift playground app (when run in its own window) becomes unresponsive after approximately 3 minutes. The window goes dim and the playground ceases to respond. The HUD automatically comes down to suggest restarting the code. No error in my code is reported, and I seem to only ever encounter this issue when running from Swift Playgrounds on iPad (not an issue on Xcode). I know there is a 3 minute limit anyway for the Swift Student Challenge, but is anyone else experiencing the same issue? if not, any thoughts on possible causes of this?

The terms and conditions state 16 years minimum for the EU, but as the UK is no longer in the EU would just the 13 year limit apply?