Keyframe doesnt upload file when saving

I have the 2026 version of SketchUp. I am using the keyframe extension, and when I create a tween, the system crashes, and the tween doesn’t save.

Are you referring to Keyframe Animation 2 from the Extension Warehouse? According to the extension’s page it supports up through SketchUp 2022. Have you tried contacting the developer.

Did you install SketchUp 2026 correctly using the right click, Run as administrator steps? If not, that may impact the extension, too.

BTW, please correct your forum profile. There is no Classic license for SketchUp 2026.

Thank u.

I downloaded 2.5 key frame animation. I will contact them directly.