If the dashboard json was exported from different instances of superset.
On import, it will import dashboard as what the slice as hardcoded in the json. | For example: dashboard 1 has 10 slices (slice id 1 - 10) dashboard 2 has 5 slices (slice id 1 - 5)
After import dashboard 1 and then import dashboard 2. The slice 1-5 of dashboard 1 will break because it was replaced by the metadata inside of the slice 1-5 of dashboard 2.
How do I overcome this?