try a restart of pc, then start x5 and project. then preview once with ctrl button pressed (takes a bit longer) then close preview and hopefully your problem is solved, if not let us know.

The first a attempt it worked. Will continue and report for repeated success or failure.

So.... what is happening when I use contrl to preview.

With ctrl key you refresh your memory and build up the preview from scratch instead of from memory. Sometime in memory a small error occurs, the above way is a simple methode to clear and refill memory with fresh data.

That's is so use it from time to time or if you see error's