We have tried to replicate the reported issue at our end by created a sample with the following scenarios which will cause object disposed exception:
- By navigating between Kanban sample page and MainPage
- By dynamically removing and adding Kanban control.
- By dynamically removing and adding Kanban cards.
We are afraid that, we are not able to reproduce the issue at our end.
Please find the sample from the below link.
Since we are not aware of your exact application scenario, we were not able to reproduce this issue at our end, so can you please revert us by modifying the sample based on your application along with replication procedure. This will be helpful for us to investigate further and provide you a better solution at the earliest.