I've only seen this in 2019, and it happens about 50% of the time:
1. Open an FSM
2. Grab a state and try to move it about one inch in any direction
3. See the state has shot WAAAAAAAY far away from its original position, and you cannot see any states in the minimap.
The only way to fix is to hit Undo (hoping you haven't done anything else) and hitting 'F' to center on the state. This fixes the placement of the state, but trying to move any state (or even trying to connect an event from one state to another) will throw the view off somewhere in space.
Anyone else see this?