Can't select multiple PDFs consecutively in Media library

[jimafisk]

You can select multiple image files in a row without issue, but for files like PDFs which display a preview to the file, once you select one you can't then select another previewed file (you could select an image though).

Temporary work around: After selecting the PDF (other other previewed file), just click somewhere else on the page (resets focus) and then you can select the next PDF. You would have to do this every time after selecting a PDF.