Figures layout is skewed after updated to v4.5.7.179634

After updated Digital Editions from v4.5.6.177148 to v4.5.7.179634 today, some figures (like a flow-chart) in PDF documents are not displayed normally. (Some shapes and texts are missing in a figure.)

I've tried to display it with using zoom-in and zoom-out feature but doesn't help.

Does anyone have an idea to solve it?

Or if possible I want to downgrade the Digital Editions app to the previous version. Please kindly let me know how to do it.

Thank you for your cooperation.