roto brush v4 Refine Edge Matte with Smoother first frame glitch if the precomp frame prior is blank

there is glitch in Refine Edge Matte with Chatter reduction Smoother selected.

it’s only happens if the precomp layer has blank frames. I'm guessing that Smoother option look for before and after frame for Chatter reduction. there is no issue if the roto brush is applied at the 1st frame or apply directly to footage that trimmed but frames exist,

solution now is trim the precomp to footage length, add duplicate frame at frame before, extend head frames if you have.

thanks,

t

system info:

MacStudio M2 Ultra

OS 15.7.9

AE 26.5.0