Extend Surface issue in Rhino 8

I have some odd behavior when trying to extend surfaces in Rhino 8.
Rhino 7 works great!

Hello- please post an example file indicating which edge you are extending.


ExtendSurf.3dm (80.0 KB)
Extend the lower edge first and then the upper edge

Go that, thanks.
RH-80119 ExtendSrf messy


Thank you for the quick help!