The Action has two unmapped dimensions that the user has to select, but as shown in the screenshot 'Capture1 .Png', It will consider only one dimension for both the selections in NUX, hence the dimension does not get mapped resulting in error shown in screenshot 'Error 1.png'.
But in the Classic Dashboard it shows both the Dimension selection as shown in 'Capture 2.png' and the data import runs successfully.
I have recreated the action, recreated the page, recreated the action button, still this issue persists.
I am currently working in "au1a.app2.anaplan.com" platform. Please let me know if there is a quick solution to it.
Best Regards,
Supriya R M