When a video is shared via the "Link Share" feature the video fails to load in chrome. If the whitespace is clicked the video loads and plays. In firefox the video preview does load. However, intermittently the play button does not load.
If it works for you in FF but not in Chrome, then it could be an issue with your Chrome extensions/plugins. Check if you are able to access the thumbnail image in Chrome?
It would be something like /libs/dam/gui/content/assets/assetlinkshare.html/content/dam/eaem-decrypt-assets-filter-6420.mp4.thumb.319.319.png?ch_ck=1548415046000&sh=b9e262cf_5215_422a_bb50_fef385e5b2f3.ejJ58PdI4mMDpABpddLa7nJwf2Zk1Bf5rBWWXudgTXY&path=