Protocase 4.1.9 .cas import problems

[NottSci]

I have recently upgraded to Protocase Designer 4.1.9 and I cannot import a .cas file generated by an earlier version. It can be seen in the browser, but when you click on it nothing happens.
Any help gratefully received

[dronne]

If you send me this file I will fix whatever issue exists and make it work.

I'm sorry I didn't reply sooner, the notifications on this forum haven't always been working.