Hi there,
I updatet my Rhino8 from 8.24.25.281.15002 to 8.25.25314.11002 on mac.
Since the update the sweep1 component in grasshopper is extruding in the opposite direction. The bug happened on two different computers with the latest update and it didn’t appeared on a computer with older Rhino Versions like 8.24.
Attached is a screenshot of the file opened in Rhino 8.25. Also the two files.
hope you guys can fix it for the next update or show me that I’m wrong 
Paul
Hello Hannah, I am not an expert in Rhino versions, so do not know if there is a a bug, but I have an explanation.
See image below. You see that the starting point of your rail is at the opposite side of the line.
For the extruding sweep start at starting point and extrudes along curve to endpoint. Giving the cylinder you showed.
A simple flip curve is enough to let it work in the other direction.
PS: Please internalise the material you have, save uploading the 3dm file.
Regards, Eef
Hi @LOMA,
This was broken in Rhino 8 sr25 release. Grasshopper Sweep 1 started using Global blending, instead of local, with no options for inputs. This has was not detected and sr25 was released and it should be fixed in in sr26 service release.
If this is an issue with your GH definitions, you can uninstall Sr25, and go back to Rhino 8 sr24
Windows Rhino 8 sr24 or Mac Rhino 8 sr24
Turn off the automatic updates, until Rhino 8 sr26 is available.
Options → Updates and Statistic, disable automatic updates.
Hope this helps.
Sincerely,
Mary Ann Fugier
Thank you very much 
RH-90489 is fixed in Rhino 8 Service Release 25
