Having just upgraded to Toonboom studio v3.5 (MAC version). I converted some of my existing v3 project to v3.5. When I went to import them into flash8 it won’t work. There is no error message the screen just flashes and then nothing happens. I am still able to import v3 project without problems.
We are currently working on TBSi for Toon Boom Studio v3.5. It will be released as soon as possible but in the meantime the best solution is to export as swf from Toon Boom Studio and then Import the swf inside Flash. Although, be aware that Flash will not import the sound so you will need to import the sound as a second file.