Warframe marked for death by grustrag three

So with the deathmark system, my understanding is that when you fulfill a certain requirement (i....

Technically 5.5%* max spawn chance for Stalker assuming Grineer/Corpus enemy faction with a mark ...

While you have the death mark, there is roughly a 1.5% chance for the Grustrag Three to spawn dur...

<'' ) then is my death mark gone or still there? i support the corpous 5 times again but i didnt ...