[NextGen UX] Text Box widget issue

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!

What is the MDX in the dev tool? Do you see an error in the MDX that is sent to TM1?

MDX has no error, it correctly switched to the Cube: flow_Cashflow_notification_setup

Just to add, this is the error when I click Save.

It may be a long shot, but on your first screenshot, you have the dimension “flow_iteration_AP” as a global filter, which is dynamic on the MDX query, when you switch to the Cashflow one, potentially in some of the requests, it may be still using the “AP” one?

The error you have in the UpdateCells request is about wrong dimensions, so maybe is something like this.. you may be able to see in the “payload” what is trying to send.

You can try removing the one from the filters to see if it helps.