In Trados Live, I add .sdlxliff files for translation. While in the beginning, Trados sees them as Translatable, at a later stage it reads them as reference files, which makes it impossible to open for translation. Where's the error?

In Trados Live, I add .sdlxliff files for translation. While in the beginning, Trados sees them as Translatable, at a later stage it reads them as reference files, which makes it impossible to open for translation. Where's the error?
How do you know they are being handled as reference files? Please elaborate on this a little as files don't just switch between translatable and reference in the middle of a project. Maybe use a screenshot to help explain what you're seeing.
Paul Filkin | RWS Group
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