Cannot Open 360 Degree Image Editor

The issue you are experiencing with the 360-degree image editor freezing is likely caused by file path corruption or sync conflicts from OneDrive, even if you copied the files locally afterward. Storyline tightly binds asset references within the project package, and cloud-sync interruptions can corrupt the internal pointers required to render the 360-degree environment. To fix this, move your entire project folder completely out of OneDrive into a local directory (such as C:\MyProjects), create a brand-new Storyline project file, and use Import to bring in your existing slides rather than opening the old file.