I just jumped into the 5.3.2 source code and it appears that the min and max contact offsets are clamped at appropriate values. I’m not sure why it’s not helping, then, so I’ll keep digging. But if anyone else knows, please do let me know.
UPROPERTY(config, EditAnywhere, Category = Simulation, meta = (ClampMin = "0.001", UIMin = "0.001"))
float ContactOffsetMultiplier;
/** Min Contact offset. */
UPROPERTY(config, EditAnywhere, Category = Simulation, meta = (ClampMin = "0.0001", UIMin = "0.0001"))
float MinContactOffset;
/** Max Contact offset. */
UPROPERTY(config, EditAnywhere, Category = Simulation, meta = (ClampMin = "0.001", UIMin = "0.001"))
float MaxContactOffset;