UnpackFromAny.vim throws error '1097' when unpacking the packed data for a larger number of controls

[varshini-senthil]

Bug Report

I have 2 sample python measurements. One measurement has minimum controls (7), and the other measurement has more controls (23).

• I converted the measurement configuration cluster in the measurements to gRPC message using Cluster to gRPC LabVIEW Message.vi and registered the messages using Register Message Metadata.vi and Register Enum Metadata.vi.
• Then I packed the measurement configuration cluster using PackToAny.vim and tried unpacking the packed data using UnpackFromAny.vim.
  • The unpacking is successful when there are less controls, and it fails with '1097' error code when there are more controls.

Logic in the VI:

Unpacking for less controls:

Unpacking for more controls:

Repro or Code Sample

• Run the python measurements in 'sample_measurement' (less controls) and 'sample_measurement - Copy' (more controls) folder. - Refer the below link to find the steps to run a python measurement:
  Steps to Run/Debug the Measurement Service
• Run the 'Unpack.vi' and 'Unpack-error.vi'.

Code to reproduce:
Test.zip

Expected Behavior

Unpack the packed data with no error for any number of controls in the cluster.

Current Behavior

Unpacking fails with '1097' error for a cluster with larger number of controls.

Your Environment

• OS & Device: Windows 10
• Measurement Plug-In SDK Service version: 3.1.0.5
• LabVIEW version: 2021 SP1

cc: @jasonmreding

AB#2905586

[jasonmreding]

This should be fixed in #387