BW extraction: Incorrect update of node texts

What causes this issue?

A node text was not updated correctly in the extractor tables. The
update mode was <ZH>&V1&</> (I=Insert, U=Update).

System Response

The node text could not be written to the text table of the hierarchy
level, WR_MATGRP_MD*T, due to the error.

How to fix this error?

Make sure the record has correct syntax.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.