So this is the second time this has happened in a row, that’s why I’m reporting it as a bug.
After changing one of my parameter’s name and removing it from the Sequencer to re-add it with its new name, UEFN fully crashed on me.
Thinking this was just a normal crash, I reopened the project and tried to add the parameter to a Sequencer Track again, and It crashed for the second time in a row.
Not really sure what caused it or how to animate that track now since I’m unable to add it to the Sequencer.