Can you please share your channel link here so we can provide you with better feedback as of now, by just looking at the graphs we can't give you any specific information or the areas you need to work on. Shorts are quite notorious in nature, not all shorts make their way to the shelf. There will be times when your videos will go into Shelf right away while others might not even go, it's indeed a confusing algorithm. The subscribers and the views which you do get from the short shelf may or may not watch your long-form video as they prefer shorts over long-form, thus, there might instance where you might see a sudden drop in your normal video views.
Now, If this is your
channel, then I can say that, out of around 54 videos your channel has published in the last 90 days, 52 are shorts and I'm not surprised here to see a sudden spike in views and at the same time, a massive drop.
Moreover, there's no such shadowban really, it's all up to a bit of luck and a bit of algorithm here, If people are finding the keyword you used on your shorts video and If you do upload it around the time when most of the people are active and If your shorts are getting good audience retention which means, If people are waiting and watching your videos either completely or at least more than 50%, which is around 30 seconds + If you have posted 1 min short, then YouTube Algorithm will push the video to a wider audience as much as it can until your video performance eventually starts going down and at one point of time, it will just stop getting views.
Now, If you've done your research well when it comes to keywords and If the topic or content of your short includes a piece of information which people are still looking or searching for, man... you just have won the algorithm there! People will find your videos through normal search discovery, thus, youtube pushes your shorts video as a normal video and thus, you will keep making the views, however, If it's just a random short that you made out of pure entertainment, then it shouldn't be surprising to see a drop in the views overall.
-----------
Also, in regards to the YouTube channel ink below your post :-
You can fix the error at the bottom of your post by following these instructions:
Hello TubeBuddy Community! First: To access the page where to add the Button go to: https://community.tubebuddy.com/index.php?account/account-details Scroll Down to here: Second: Head over to: https://www.youtube.com/account_advanced Copy your Channel ID it will look like that and Start...
community.tubebuddy.com