flash animation in captivate 8 modules are slow and the beginning of the associated sound is cut at the beginning

Hello,

We have created an eLearning module using Captivate 8.

There is a total of 84 slides.

In which we use :

- flash companions with animation of the lips and eyes.

- sound for the companions

- software capture realised with captivate 8 (57 slides on the 84 are captured)

When we reach around slide 40 the animation of the companion is slowed.

Then when we reach slide 56 the beginning of the sound is cut (around 2-3 seconds).

If i publish only from slide 40 to the end we have no more problem, it's only when we publish the whole things we have the issue.

The whole cptx size is 85Mo (clean library).

Do you have an idea to help me ?

Thanks a lot.

Vincent