I have been encountering this issue for a good 12 months now.
When using the teleport function in the app once you have confirmed the teleport the app freezes and has to be closed and reopened.
A fix to this would be great as it is an annoying bug.
This is definitely an app issue and not related to phone or iOS version. I have recently changed phones and running the latest iOS but the issue remains.
Although I have seen this reported elsewhere I would like to know if anyone else experiences this.
Thanks
Chris