Good morning Ken,
I'm afraid I can't provide any support for this Xamarin Forms example since it's not one of our products; Xamarin Forms in general is something we do not provide a sample for or guarantee to working properly even.
Also, we do not backfix previous major versions. My recommendation would therefore be to try the latest version of the Xamarin SDK and check whether this memory leak is still present. If it is, I'd be happy to have a look at what's going on internally if you provide me with the instructions to reproduce it.
Thank you for getting back to me. I was able to resolve the issue. Thanks again!
This version works but there appears to be a pretty significant memory lead for iOS users that I cannot track down. I am assuming that was fixed in later versions of Wikitude???
It seems like the objects drastically changed from this version so any current example would be super helpful. 'thanks!