Why some time when i open the scenes, the population of ecosystem is not the same that you did before saving the file?
re populate?
It should be the same. My scenes seem to look the same after I reopen them.
What version of Vue are you using? Please post a "Before’ and “After” image so we can better see the problem. 
Hi Demian. Yes, the population should remain the same. Of course, if you repopulate, then it will change. But just saving and opening should not cause any difference to occur there. Perhaps there is some bug. Do you have an example scene that you could post where this seems to happen? Which platform and version of Vue (as Lorne asked) are you using? This is just a wild guess but do you perhaps have some sort of Python scripting involved which might be triggering a repopulate upon opening or anything like that?
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