Certain Movie Clips / Animations not playing
Hi - Newbie here so please go easy!
I have created a seawave that I have turned into a Graphic & Movie Clip Symbol
I animated this using a Classic Tween and it has worked well.

To add to the wave effect I have reused the wave movie clip, added these to extra layers wave1, wave2, wave3.

When I press play only wave1 is animated - wave2 and wave3 remain static! I get the following warning:

To confuse matters, it works on my student machines (IT Teacher) but not on my Laptop or PC - may this be a hardware or install issue? Ive also tried with Edge and Chrome.
Really stuck!!!! Ive attached the file if anyone could please take a look?
Thanks
