Issue with fade in, fade out and other editions

[Jujulebarbu]

Hello everyone,

Sometimes, I get issues when I want to insert a fade in, fade out, cross fade or any other edition at some point in my Luna session.
I recorded my screen so you can see the issue :

Dropbox

www.dropbox.com

When I slide my mouse, the edition comes back to its initial sate and I cannot edit anymore.
Is there a work around for this ?
Thanks !

 

[chrisharbin]

Trying to do what you did in that vid, I'm not getting the same result. My specs below, what are yours?

 

[Jujulebarbu]

Trying to do what you did in that vid, I'm not getting the same result. My specs below, what are yours?

Here are my specs :
Mac studio M2 Max
Ventura 13.5
64Go Ram
Antelope Discrete 8 Pro Synergy Core