The Export to File activity sometimes reports an incorrect failure when it actually succeeded (NETIQKB73318)

The Export to File activity sometimes reports an incorrect failure when it actually succeeded.
The following ERROR appears in the Core.log even though it succeeded:

ERROR [P1-3] Could not map Very High to a valid importance defaulting to medium.

Use a Capture Workflow Errors activity in your workflow to capture the error that the Export to File activity might generate, then proceed as usual.

error is not beeing captured

Formerly known as NETIQKB73318