HTTPS share & Embed issue fresh 14.18 and 14.16 install

I have installed successfully both 14.16 and 14.18 for HTTPS and most items are working except when I try to play videos from the ‘Share and embed’ page, both via the short links, using the embed codes or even the preview in the ‘Share and Embed’ page.

The video preview image is there and when I click play it the spinner just keeps spinning but, the timeline preview works as in the image attached.

If I go into the flavors section I can play each flavor.

I did do a Kaltura Sanity check which reported one error:

[DWH cycle] [FAILED, RC: 255] - [17.582231164]

This is on CENTOS 7, HTTPS and Apache.

Anyone have any ideas?