Blind ability are not working

The last 4 titan fights the titan has missed only 5/52 attacks. I always use arrows at the beginning of the fight and refresh them after they run off or The spezial from my maxed Joon run off.
I think there is something wrong.
Previous Titans had a similar situation but I havn’t counted it down. Just for the one now.
Could you please check if there is a problem with it?
Thanks