TYPO3 Core

I can confirm the issue.

1 / Content element was created, images added and not saved yet

If you click the image crop button of the first image the wizard will open. When clicking on the button "Accept" the browser console returns an error for <img src="${e.src}" style="${styleMap(d)}">:

2image-manipulation.js:18 Uncaught TypeError: Cannot read properties of undefined (reading 'src')
    at image-manipulation.js:18:27
    at Array.forEach (<anonymous>)
    at ImageManipulation.setPreviewImages (image-manipulation.js:15:2478)
    at ImageManipulation.save (image-manipulation.js:21:661)
    at HTMLButtonElement.<anonymous> (image-manipulation.js:13:7108)
    at ModalElement.<anonymous> (/typo3/sysext/core/R…lar-event.js:13:433)

When clicking on the button "Cancel" in the wizard, the wizard appears to close but another instance remains open until you click the 'x' icon in the image crop wizard.

If you click the image crop button of the second image, the content element will reload and lose its state.

2 / Content element was created, images added and saved

The behaviour persists even when the content element has been saved, but the problematic behaviour varies. For example, if you open the previously saved content element and open the image crop wizard of the second image, everything works fine. After closing this image crop wizard and click on the button to open the image crop wizard of the first image the content element will be reloaded and the changes will be lost. The behavior reverses depending on which image you start with.

Patch set 2 for branch main of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/c/Packages/TYPO3.CMS/+/79555

Applied in changeset c9b60dd534b09949046f19023acea082c1bba6e8.