Mouse Position doesn't properly update on tick when framerate is low in standalone game

If a game is run in the standalone editor and the FPS drops to ~20-30 FPS, pressing an event such as LMB and returning the mouse position on tick will cause the tick to jump inconsistently.

Note:

This bug is extremely difficult to reproduce. During testing it reproduced once out of ~12 attempts.

1. Download, unzip, and open attached project.
2. Press play to play in standalone mode
3. Using RMB and repeatedly dragging, turn the camera to face the floor, this causes the framerate to drop.
4. Press and hold LMB and move the mouse on screen

Results:

If error occurs, the mouse position will report inconsistently, jumping between values instead of smoothly moving with the mouse cursor.

Expected:

Tick accurately shows mouse position every frame and smoothly moves between values.