The threshold variable is deleted when deleting unused variables (elimination)

Which products are affected?
HMI Designer V1.7 SP1

Eliminated function restriction:
When the <Delete Unused> button is pressed only variables which are not used in the HMI project are deleted. Variables which are exclusively used as threshold variables are not deleted.

URL for linking this AKB article: https://www.lenze.com/en-de/go/akb/200806424/1/