Deleting gradient swatches crashes InDesign

[TRA573594]

There are 4 custom gradient swatches in this document, each of them crashes ID when modified or deleted. The document is empty but has a file size of 22 MB?!
ID 19.4 / MacBook Pro 16" 2021 / M1 Max / 32 GB / MacOS Sonoma 14.5

[Mike Witherell · Accepted solution]

This document is corrupt.

But if you export it to IDML and then reopen the IDML file and save it as INDD, the file will function.

These gradients are oddly made, tho.

[TRA573594]

It works perfectly. Thank you so much!