All generated media behaves this way. I don’t believe this a bug but rather a limitation that you can’t edit generated media in reverse mode.
When you reverse an event it makes a new media object in the media pool. The original text media is still there and still editable. This indicates to me that the reversed event is not the original event anymore and therefore cannot be edited. I’d say this is not a bug but rather "working as designed".
Notice also that if you right-click the reversed event on the timeline, the popup menu option to Edit Generated Media... changes to a grayed out option to Edit Source Project! So the event is no longer considered generated media once its reversed.
. . and you can't copy and paste a reversed clip - text/media OR non-text/media. So this reversed option is not something that follows the paste attributes options either. I'll need to remember that. Oh yes!
But also along with now knowing that, I can ALSO Copy & Paste velocity "reverse" from Text Media to Text Media.
* Clip Reverse Function DOESN'T Copy & Paste Attribute
* Velocity Reverse DOES Copy & Paste Attribute
Once using the -100% Velocity Envelope, meaning reversing, the Text Edit Menu is available and no limitations
Interesting that there is a "limitation" in Clip Reverse, but not in Velocity [ -100% ]Reverse.
Now I'm wondering when a limitation is not a limitation, but maybe something else?