As the title implies i find multiple instances of the same charcters in his scenes ,so i was wondering if i had a problem or something
I'm not sure I fully understand this detail, but I've had access to KrUnCh's work that uses a timeline (although lately I only download it and don't load it into the studio due to the excessive resource consumption and size of each SD file).
In some SD files he made of Frieren and Fern, I noticed the simultaneous keyframes with two models, and here's what happens: this is because KrUnCh decided to give the same motion to two characters that you can switch between simultaneously in the visualization, separating them into folders.
Of course, this significantly increases resource consumption, and that's without even mentioning the lighting and post-processing effects he activates and adjusts.
Plus, he uses sound and video effects on the same timeline.
Also, keep in mind that the Charastudio where his scenes must be used is Sunshine.