In DX UIM 23.4CU2, the Dashboard Designer Pie V2 chart has some limitations:
DX UIM 23.4CU2
Enhancement
DX UIM 23.4CU3 which is expected to be released in January 2025, includes a new updated version of the Pie V2 widget.
The following changes will be released Pie Chart V2 version with the CU3 Operator Console patch:
Documentation updated: Add a Dashboard Widget >> Add a Pie Chart V2 (From 23.4 CU3)