For example, if we specify an initial condition for V(pos) and V(neg), we can prevent this circuit from encountering difficulty in resolving the DC solution and produce a correct DC result.
For your information, in the output window, it indicates that Direct Newton iteration, Gmin Stepping, and Source Stepping all failed to find a DC solution without .ic or uic. It eventually resorts to a Pseudo Transient analysis solution and provides an incorrect V(5V). Anyhow, this circuit has been copied to Mike for review, but we typically need to be very cautious with oscillation circuits, especially this setup is unrealistic if without any delay in the comparator.
