Wan VACE First and Last Frame Workflow length parameter keeps at 45 for any length input

[vieriw]

Why the length parameter in WanVaceToVideo Node will keep at 45? Any reasons for this?
It will result in wired effects if I want to generate a longer video such as 161 frames.

[brknsoul]

Answered in Discord;
It's being overridden by the Int node to the left.
that's why it's greyed out.

Your length is actually 81.

[vieriw]

Thanks for the help! Checked there is update for Comfyui found. So the result seems wired behavior in my machine as the image shows. I will unmark as answer for now to see if there are similar situations.