Why do I get un­parsed [media-​credit] short­codes in my Facebook/​Twitter/​… pre­views with Jet­Pack Pub­li­cize?

Un­for­tu­nate­ly, this is a known bug in Jet­Pack that can on­ly be fixed by Au­tomat­tic. As a workaround, use a dif­fer­ent plu­g­in for post­ing to so­cial net­works. Al­ter­na­tive­ly, if you make sure that you haven’t got any im­ages with cred­its with­in the first 55 words of your ar­ti­cle, you should be fine, too.