You can check an update in the support ticket #1139253 that you opened for the same issue. I will post the reply from the ticket below in case there are any other community members experiencing the same issue:
"There is a known issue in build 126.96.36.1995 of our product, that is related to rendering the PictureBox contents on machines that have their DPI greater than 100% (96dpi). Based on the attached images, we guess that your reports may be affected by this bug, which is already fixed and will be included in a subsequent release of our product.
Please note that the issue is not reproducible when the machine DPI settings are set to 100% and we would recommend you to use this DPI when rendering your reports until the fix is published.
Another option is to downgrade to Telerik Reporting 188.8.131.524 - this is an internal build and can be accessed from your account, as shown here."
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