3586784 - SAC Data Blending between Live model and Import model results in error

Two SAC models are blended in SAC Story - one is a Live connection Model and other is Import connection Model.
Widget with the blended models does not load any data and shows following error messages:

• "Cannot reach the remote system: it may be offline."
• "Failed to communicate with the remote system."

In the underlying backend system, the following dump can be found in transaction ST22:
Category              ABAP programming error
Runtime Errors         GETWA_NOT_ASSIGNED
ABAP: Program         CL_BICS_INA_RS_RENDERER_REM===CP
Application Component   BW-BEX-OT-BICS-BLE

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