Hi, this functionality might be unstable since it's not covered with tests or demo app. I'll need to write some test code to suggest a proper way to do it and potentially to fix bugs (it's too late today to start it). The thing I definitely don't like about your approach is Do...Loop cycle for waiting. Such things should be avoided. To give me some context, what is the purpose of prefetching tiles in your scenario?
Regards,
Sergei
Regards,
Sergei