The "Object → Item prototype → Name" override condition is evaluated against the expanded item prototype name instead of the prototype name definition.
As a consequence, LLD macro values influence the object selection, making it impossible to reliably match only the static part of the prototype name.

example:
Item prototype name :  "log {#DESCR}"
override condition: Item prototype name contains "count"

if {#DESCR} for example contains the word "account" then the condition matches and the override rule is executed despite it shouldn't