i would probably judge that since the immunity is more of a switch that just flips on due to gaining explosive mode rather then the actual immune to debuffs buff it probably just isnt working right due to the coding overlooking it.

Thank you for the reply! I hope what you responded with is the problem and it gets corrected. I originally sent a form in saying it was bugged, but they adamantly said that it wasn't which is why I didn't post this in the bug topic section. I hope this gets looked at further. I know kabuto sage isn't meta breaking...but I ended up pulling him and find his skillset unique and just hope for him to function properly.

I noticed this today, and it is clearly a bug, because other ninja who gain immunity upon action, clear previous debuffs. This is even true of things like root of warrior

I just posted in the official bug thread with the issue since I am not sure they have checked this thread. Hopefully they will truly resolve this problem. Thank you again for the replies!

That is where you should had posted it to begin with.

If you read the third comment... I had already contacted customer support about this issue and they stated it wasn't a bug and to seek help on this forum. Seeing as other players agree with my conclusion that it is a bug and no one has come up with any other logical explanation with why it isn't functioning like it should has led me to report it a second time.

In my experience sage kabuto is pretty terrible. From what you are saying in this forum, he is worse than i expected.

He is not very versatile and conisdering the meta of sosp and skill broke kakuzu...it is difficult to be competitive with him. However, kabuto sage has a lot of potential. In my mind, I see him like a 3* kakuzu. Doesn't truly shine until 4* with trials. Imagine if he got skill trials that made his mystery unmissable like shizuka and revived a unit for more health. Maybe he could have mystery cool down if he combos his standard allowing for him to be immune every round but would require you to have no dead units which is a serious downside. They would make him viable. I would like to say that I know someone is looking into this "bug" as well so that is also a positive note.

it doesnt clear the debuffs he's having before u mys but he wont get any debuffs after u mys.

that's how his immunity works.

Exactly! That begs the question, why is his immunity different from 4* shira, edo tensei Han, and lightning mains? based on skill description and how all of the other immunities work... He should clear them as well. Hence, why I called it "knock off" immunity since it isn't like the rest.