Ok, so you are not using JPeron’s Kanban widget.
You did create a Kanban the same way I tested some time ago.
However, I run into a big problem at the time, a bug
so basically, each of my Kanban columns was a filtered view of the TASK (your columns are FILTERED BY STATUS) I suppose you used the same method, each Kanban column is filtering
When I change the Task (it would be changing status for you), the “card” gets duplicated, because it appears under the It Preparation task filter, but it did not disappear from the Training task filter
That was in December. Wunter replied and said the Grist team did that on purpose.
As far as I know, this is the expected behavior for now.
I ran into a similar issue with todo list items not disappearing from a filtered view when I checked them “done”.
Grist told me that they have it set up so that changing a row will exclude that row from the view filter until you refresh the page.
The idea is that it will be less jarring (in general) for users if the row they are making changes to doesn’t just suddenly disappear if they change something that affects the filter.
I agree with you, though, that there are definitely times when the user expects the row to disappear after making a change.
So, did they fix it or that problem does happen with your Kanban?