Is it possible to End Date a Variable Rate association via HDL?

Summary:

We are changing our Rate structure for medical plans and need to end date the existing variable rate associations from the standard rate. When we attempted to load an end date via HDL, it inserts an end date, but it creates a new span for the variable rate.

Content (please ensure you mask any confidential information):

We attempted to load an end date via HDL using the below load file.

METADATA|VrpAssociation|ActivityVariableRateId|ActivityBaseRateId|VariableRateProfileId|EffectiveStartDate|EffectiveEndDateMERGE|VrpAssociation|100000033167008|100000033162516|100000033174902|1951/01/01|2025/12/31

When this was loaded, it end dated the row, but inserted a new row the day after the end date.

Is this possible, to complete this via HDL? Is is there another method to inactivate the association without doing it manually through the UI.