17,1 iMac, 24gb, Mojave 10.14, 3tb fusion drive. Is anyone experiencing this after upgrading to Mojave: The default opening app for ALL pdf's is PDF Expert (my choice). For any pdf I make, after upgrading to Mojave, is forced to open in PREVIEW from Mojave Books. PDF's anywhere else, desktop, etc., open in my choice, PDF Expert app. Did the Apple+I, assign all pdf's to open in PDF Expert Ran Terminal commands to clear the LaunchServices Twice wiped my main HD and reinstalled Mojave, then migrated all data. And still all NEW pdf's stored in Books, since upgrading to Mojave, open ONLY in PREVIEW. WHY?????