Hi All,
I’m using Full MDX to dynamically switch data source cubes in the UI, but the UX Text Box widget isn’t saving my input properly.
Current Version: 2026.02
The image below shows the data source setting for my widget.
When I input ‘ABC’ and click SAVE, it correctly writes back to my cube: flow_AP_notification_setup
But when I switch to cube: flow_Cashflow_notification_setup, and do the same thing, it can not write back to the cube
I checked the Network tab in DevTools and found that the tm1.UpdateCells request returns an error when I click Save.
I’ve attached a screenshot showing a successful save for comparison. In this case, the tm1.UpdateCells request completes without any errors.
Has anyone encountered a similar issue when using Full MDX for data sources? I’d appreciate any help to resolve this error. thanks!








