math_counter_advanced icon is lost

[MyGamepedia]

Describe the bug

math_counter_advanced icon is lost.

To Reproduce

1. Open Hammer.
2. Place entity math_counter_advanced.
3. Pay attention that icon use error texture.

Issue Map

None of maps in game, lol. Only in Hammer.

Expected Behavior

User should see icon from Mapbase or see icon created by P2CE Team.

Operating System

Any.