When making a transition between two AVI files visual glitches appear either in preview and in rendered video.

Those files are AVI, FICV format. Resolution and framerate are not important. Issue occur for every transition, it may be related with VFW.

What's important, issue doesn't appear in Magix Movie Edit Pro.

Both softwares create two instances of FICV decoder but glitches appear only in Vegas Movie Studio.

Please check that problem and fix it.