Issue Saved Losts

[Kijacode]

I have used Kanban Board to track my issues in Todo ,Progress ,Testing and done stages of each feature I implement.
=> It come to a stage when I saved my issues in one of the stages or all sometimes. and close my vscode project. when I open later they are not restore back ...Then I create other issues ...and close the vscode.... when I open the previous issue are restored and the current saved issues does not restore.

Please I need help on this.