Animation Montage blend floating

Hey all,

I have an animation montage which I want to start and blend in form the current animation e.g. Idle.

When doing so, the character floats weirdly. Please check out the video of an example: Animation Blend floating issues - YouTube

There are no key’s to where the character is floating to. The starting pose of the montage does not deviate so much from the idle position. I am confused on why it is making this movement since there are no keys there.

I hope anyone can help me out to fix this issue.

With kind regards,