Symptoms

• Older KDS devices behave differently from newer ones.
• Some stations:
• Lag
• Miss orders
• Lose audio
• Fail after long uptime
• Newer stations remain stable under the same conditions.
• Restart cadence differs by device type.
• Issues cluster by hardware model, not by role or location.

Likely Causes

• CPU/RAM limitations on older hardware under current load.
• Different GPU / graphics driver behavior.
• OS-level differences (kernel, drivers, libraries).
• Thermal throttling on fanless or aging devices.
• Storage latency (old flash / SD media).
• Newer KDS builds optimized implicitly for newer hardware.

Notes

• This is a platform divergence issue, not a configuration bug.
• Very common late in a system’s life when software evolves.
• Creates “haunted” behavior that appears random but isn’t.