Please create a small Visual Studio project that reproduces your issue so that we can investigate it.
You can send us your project via email or support ticket, see the Contact page.
Unfortunately, the file uses rich data which is currently not supported.
We have created an internal support ticket for rich data and I added your report to it. When its priority increases (more users request it) we will add support for it.
At this moment I cannot tell you exactly when it will be implemented. Please note that we prioritize feature request implementations by the number of users requesting them and currently, we are working on some other features that have greater priority (more user requests).
Last, as a quick workaround for now, when inserting images with Microsoft Excel 365, instead of using “Place in Cell”, try using “Place over Cells” and then position the image above the desired cell.