Moin,
for some unknown reason my geometry node animation turned into a NLA animation. So I have no keyframes in the time line any more. After a little bit of searching I found out that the only way to reenable the keyframes is by selecting the strip in the NLA editor and press tab. I have than my keyframes back but only temporary.
Is there a way to get them back?
And do you have an idea why this happend?
Go to dopesheet editor and change to action editor mode. In the action controls change to the Geometry NodesAction. Note: By default the keyframes will only show when you have the nodes with keyframes selected. You can click the arrowhead icon in the header to show all keyframes except hidden objects. The icon next to it toggles whether to show hidden objects keyframes.
***Edit*** In newer versions of blender you may have to select the Action slot as well as the action. If there isn't an action slot then just click new to create one.
Did you click the arrow head icon in the header of the Graph editor? Otherwise you need to have the the Geonode node selected to see them. Unless it's exposed thru the modifier.