I did not find any more ranger spells with this behavior, there must be some difference between this spell and others - first part of this issue is to look for it.
[ ] Find difference between this spell and others (or different reason why this is happening)
Going to the section "Hraničářská kouzla" and then click on "předchozí" few times gets us to the spell in the attempted image.
http://nove.dracidoupe.cz/rubriky/hranicarkouzla/?z_s=3
I did not find any more ranger spells with this behavior, there must be some difference between this spell and others - first part of this issue is to look for it.