Well, so far, I have to say that the jury is out regarding the latest version of Vue.  

• Conflicts using older materials, both terrain and plants.  For instance, bring a tree created in Vue 7 or 8 into 9 and the scale is minute.  Leaves on the ground look more like leaf dust!  Tree barks look tiny and repetitive. 
• Not only is scaling an option.   A bump value set to 0.200 in 8 is loaded at 0.900 in 9.  Too high a bump value makes textures look awful.
• Ecosystem distribution is wrong.
• Also on the subject of materials – they all have a gamma correction of 2.2 making them unnaturally dark.  This can be overridden of course, either for each and every texture in the materials lab or in Post Render Options but not everyone will be aware of this.  It looks bad on content creators such as myself as customers want to just buy and load a material and not have to fiddle around with it to get it looking right!
• Memory issues….again.  No change there then!   Seriously, a single terrain loaded with an ecosystem material and my resources dropped below 25%
• The option to right click on the Select Render Area icon doesn’t work (how did they break THAT???)

One must assume the scaling issues must be linked to the fact that they’ve changed Vue’s internal unit size from 0.1 to 1.0 but that doesn’t explain the bump problem

I’m sure I’ll be adding to this as I use it more…….

UPDATE: Seems the problem causing memory usage  has been found and will be fixed in the next update

UPDATE Nov 13th:  ATMOSPHERES

Something else that seems to be incompatible with anything made in Vue 8 or older…..
EXAMPLE: Pic below is my ‘End Of Day’ from my Real Skies pack rendered in Vue 8 and looking how it was intended

Below, I made an almost identical scene in Vue 9, loaded the atmosphere and rendered.  This is NOT how it was intended to look !

November 18th – surely this can’t be right ??

One terrain with simple ecosystem loaded into scene (dynamically populated)

Gill Brooks