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An error occurred while saving the commentAnonymous commented
I have the same problem in Indesign 2020. Adjusting layout / changing margins adjusts the image scaling or image frame size of the anchored or inline image.
Thank you for reporting the issue to us.
We have fixed the issue in the latest version of InDesign, Id 15.0
Please upgrade your InDesign application to the latest version to try out the fix.
If you face any problems with the new update, do let us know in the comments.
You may also follow the below given link for the list of all fixed issues in Id 15.0