Hi people!
I’ve spend the whole day tring to solve this problem and – “It’s a kind of magic” (C) – it has been solved!!!
I suppose Vegas uses .NET framework to gain access to image filters (for loading it into the project) so i’ve downloaded the last version of full package of .NET 3.0 redistributables from Microsoft’s site and installed it.
Also i’ve tried to install DVD architect, but installation failed because if version inconsistence – DVD architect distributives were for x86 and i have x64 OS architecture.
So it works fine for all kinds of image types, i sure reason was that my OS have preinstalled version of .NET 3.0 with cutted features, instllation of last .NET release fixed it.
Hope this will help you! Regards!