I used the YouTube video box provided by WP

are you sure this is not provide by a plugin??  WP does include such a box by default…

so really depends what is getting inserted into the blog post content…. can you see in the raw post content in the db?  wp normally does oembeds for video – but my guess is the plugin is inserting an iframe…

It’s the default WP box for YouTube or Vimeo.

Here’s a link to the blog: http://www.smallgroupchurches.com/chad-veach-youth-ministry-small-groups/

Here’s a link to the linked forum post: http://www.smallgroupchurches.com/forum/church-strategies-history/chad-veach-youth-ministry-small-groups/#p1481

I guess it’s kind of two questions:

1. Is the forum supposed to duplicate videos from the default WP box?
2. Why can’t I make subsequent edits to the blog posts that don’t effect the forum topic or vice-versa?

Afraid I still dont know what you mean by a standard wp box for adding youtube/vimeo video…  default wp does not provide meta box for video upload…  the standard wp way for doing video from youtube, vimeo or other is oembed – that is just put the link in the content…

are you talking about the media uploader? are we just talking jargon differences?  dont think so since the html markup for the video is not standard wp either… guessing you have plugin or theme that is providing that wp box you refer too…  do you still see if with wp default theme in use?

as to wp blog post updates, it depends on your settings… you can have updates applied or not… check forum – components – blog post linking…  just make sure the ‘Update topic post on comment edit or delete’ option is not checked…

Actually you have uncovered a small bug there. One of those areas that so rarely gets visited it has not been spotted before now. We changed the way checkboxes are displayed several versions ago and it looks like the one to uncheck if you do not want the blog post updated upon a linked forum post edit is not working as expected. I suspect the html is back to front. I will get that fixed ASAP.

However – @mr-papa is quite correct in that the default and simple way to include a youtube vidseo into a blog post is simply to enter the url for that video. A process called oembed – built into WP and YouTube (and many other websites) takes over to display the video when the page is loaded.

As Steve surmised – it looks like your ‘box’ is creating and saving an iFrame (although we can not be sure without looking at your database). By default, iFrames are not allowed in forum posts because they are extremely dangerous and can let users embed all kinds of nasty things on your site – including code that could take everything down! iFrames already embedded in posts do no harm – but it is unwise to let people use them in posts. This is the main reason that the oembed process is so useful as the need for iframes is no longer needed. 

So – assuming this is the case, the forum post will strip any iframes from the content (by default) as a security filter.

I think he means a featured video post where you just add a video url which then creates the featured image and the video is the first thing seen on the blog post.

I have noticed this as well and usually have to go in and edit the forum post with the youtube link. 

Yellow, as an admin I am allowed to use iframes on the forums but it would still strip the iframe?

Are you sure that is not a product of your WP theme or a plugin? I am not aware that a featured video is standard and indeed I don’t have such an option here…

I believe it is an option for quite a bit of the newer wp themes, pretty much every theme I have used or tested has had it, never even thought of it not being standard for wp, I believe that answers the question 🙂

OK – seems to not be offered by Genesis themes which is what we use here,

No, its not standard… but any theme (or plugin) can add any additional meta box that they want… its quite simple…

but a video meta box is wholly unneeded since with default built in oembed, you just need to paste th url and the video embedding happens itself… without iframes in the post content…