Hi @yarivYO,
Thank you for reporting this issue. We were aware of an issue with Scene Edit Detection on Intel Macs and a fix is available in the Beta builds. Please give the Beta builds a try and let us know if you are still seeing the issue. The Beta version of After Effects is available under the Beta apps tabs in the Creative Cloud app. This fix will also be part of the next release of After Effects.
Thanks for reporting this issue and for any further information you can provide,
- John, A
...