v.2601.1.29 update has made the Form tools unusable.

[hijazh]

I've just completed the v.2601.1.29 – April 13, 2025 update for Fusion and it appears to have rendered the Form tools completely unusable.

Since the update, when selecting the "Edit Form" tool, when attempting to select the vertex of a spline surface, Fusion immediately crashes. This issue affects any spline model. Restarting the software and completely rebooting the computer result in no improvements.

Refer to the attached video that depicts the issue.

Any help or resolution on this would be greatly appreciated! Spline surfaces are the core of my work!

Thanks all.

Hardware Details:
MacBook Pro M1 MAX
32GB Memory

macOS Sequoia 15.4

[Phil.E · Accepted solution]

Thanks for reporting this, and for responding to my email. 

I did some testing and found that the crash is happening in the mouse-drag code, when selecting the vertex just before being asked to upgrade the tspline bodies. The appearance of the dialog box after the window-drag selection interrupts the selection logic.

All of that said, the workaround is simple: Pick one vertex on a tspline body, if you are asked to upgrade the bodies in the design - do so. Fusion will not crash. After that, you can use any selection method that is required for the task.

(Ticket: FUS-197138)

[hijazh]

Thanks for looking into this Phil. Much appreciated!