InDesign 2025 crashing and deleting content on pages.

1. Was the file created entirely in the current version of InDesign, or was it migrated from an older version?

It was a file that had been migrated from a previous version, I believe 2023 was the last time it had been worked on.

2. Was this a cloud document or saved locally?

Saved locally

3. Was the file saved on a local disk, or a shared/network/cloud location? Have you noticed any inconsistencies with other files saved in the same location?

Saved locally to an external harddrive

4. What version of InDesign and operating system are you using?

InDesign 2025 on a Windows 11 PC

5. Can you confirm if the document contains linked assets (e.g., images) stored on external drives, cloud services, or network locations?

Document does contain linked images on an external harddrive. I had actually just gone through and relinked some images that had broken links.

6. Were there any third-party plugins or scripts involved in the project?

No third-party scripts or plug-ins are used.

7. Did you encounter any issues or unusual behavior (e.g., slow performance, warnings) during the session when the file was last saved?

I hadn't noticed anything unusual with it beforehand, that's usually a trigger for me to save out an extra copy of the document if I notice anything, but beforehand it had been operating relatively well, though, as the OP noted, InDesign 2025 does seem to crash at random (just a general observation).

8. Can you specify if the missing content includes particular types of elements (e.g., linked images, embedded graphics, specific fonts, or native shapes)?

Text boxes, text inside text boxes, and vector shapes (native), line shapes. It won't be universal for some of them. I have one page with half the line shapes missing from the top half of the page, while have are fine.

9. Do you observe any patterns in what was deleted?

10. Was there a power outage, system update, or unexpected shutdown that might have impacted the file?

Once we have these details, we’ll be better equipped to investigate and assist you further.

No power outage, system updates, or anything else out of the ordinairy.

Going through the file now, I am seeing some weird page sizing. Elements that were on the page were apparently moved a few feet down, creating oversized artboards where those elements were moved to. There doesn't seem to be any pattern to how the elements were moved, they were strewn all about vertically on the artboard. On one page, elements were apparently all left-aligned and moved up and over to the upper left, on another they were all shifted down by a few feet, on another, an element that had been off the page in the artboard area was just moved onto the page. Apparently all at random, not on every page, which will make fixing the issue a nightmare.