Sketchfabs embeds disappeared after forum upgrade of 08/26/2017

hey, It’s good to see some changes on the forum (forum upgrade) however as a royalty free 3D content creator I’m a little disappointed that the upgrade is not complete… Indeed all our links to sketchfab viewers are no longer embed in the thread’s pages… With the older version of the forum there was a little trick to enable the sketchfab embeds… But here i really can’t figure out how or where to do that stuff…
If anyone can chime in and bring some light on that matter it would be great.