Unable to edit the page listing of a PDF import

For some reason, Logseq (macOS Desktop version 0.3.6) won’t allow me to edit the listing of a PDF imported with “’/upload an asset’”. I have attached a screenshot to better describe the issue. It only happens for listings that are directly followed by another PDF listing (shown in the red box in the screenshot) or directly above some pages (like the page “Template” in the screenshot). What would be causing this?