Try updating to build 315 to see if that fixes the issue.
Keyframing in that and other media gens is working fine here.
Tried on 315 also, this still happens for me! All other media generators work correctly, even the rays FX which has a similar keyframe setup works correctly 🤔 gonna try reinstalling from scratch i guess? *complete reinstall did not fix
Uninstall/reinstall doesn't always solve problems because the cache isn't cleared. Try resetting Vegas Pro back to its default (factory) settings via the process given in the following post - https://www.vegascreativesoftware.info/us/forum/faq-how-can-i-reset-vegas-pro-to-default-settings--104646/ - making sure to check the 'Delete all cached application data' checkbox. Note that any customised settings will need to be manually set again.
@Zaither-P I think it's a Media Generator Undo error.
See:
When you undo, the Frame Size of the Media Generator becomes 8x8 and the Duration becomes 0. You need to change them back manually.
I've had this problem with other media generators as well, which occurs when the Media Generator window remains open. My own solution is to: Close the Media Generator window - Undo - Reopen it.
@VEGASDerek I hope it can be solved in the future release.
@Zaither-P I think it's a Media Generator Undo error.
See:
When you undo, the Frame Size of the Media Generator becomes 8x8 and the Duration becomes 0. You need to change them back manually.
I've had this problem with other media generators as well, which occurs when the Media Generator window remains open. My own solution is to: Close the Media Generator window - Undo - Reopen it.
@VEGASDerek I hope it can be solved in the future release.