Just updated three machines to Windows build 1903 and metashape 1.5.3
Can confirm that on two of them, when clicking photo in the thumbnail pane it crashes metashape. colleague reported error earlier today with DNG files, and I submitted a crash report maybe 20 min ago (but after processing).
Was able to duplicate just now by launching metashape, adding one JPG, then double-clicking on it. Will include this thread with crash report.