A "Blocking Transformation" (like Sort or Aggregate) is consuming all available memory before it can pass data downstream.

While not a specific version number, "275" is cited in technical documentation for KingswaySoft's SSIS Advanced Transformations, which includes over 275 functions for data processing.

Once you have aligned versions (server build >= 275 or developer build <= server build), redeploy the project. You should see the error resolve immediately.

Do not deploy directly from developer laptops. Use an with a dedicated build agent. The agent should have a fixed, documented version of SSIS installed. This ensures every .ispac file that reaches production has the same version marker.

: Scripting in SSIS via the Script Task and Script Component.