Changing embedded video code without creating additional work?

Hi guys, very much enjoying Storyline 3 and publishing everything direct to HTML5 now... but I've encountered an issue which applies to both Storyline 2 and Storyline 3 and is creating a huge amount of work for no discernible reason.

 

I'm working with hundreds and hundreds of embedded video files hosted through Wistia and using their embedding code within Storyline has worked great.

 

Unfortunately any time I need to make even the simplest tweak like append "&wmode=transparent" into the embedding code, Storyline:

a) Resets the dimensions of the container and

b) Horribly distorts any poster frame I've allocated

 

Ultimately this means that for EVERY single alteration to any embed code (even if it's to capitalise a letter within), I'm then stuck:

a) Resizing the container back to the dimensions it should be

b) Moving the container back into the correct location

c) Removing the poster image

d) Adding the poster image back in place

 

Can you please advise if there's a way around this, or request a fix that edits to embedded code don't arbitrarily reset container shapes etc.

 

Many thanks,

Scott