IOverrideFilter doesn't have any behavior itself; it is used as a marker for the filter pipeline processing, so the tracer for the filter itself doesn't output anything (since there are no methods on this filter interface).
Adding tracing to FilterGrouping would allow showing the effect of filter overrides in the trace output.
Comments: When the filter overrides are used, the overridden filters are not traced but the effective filters are still traced. As the issue described, override filter itself is not traced. Since the override filter is not traced, it might be confusing when the developer tries to figure out why global filters are not executed from tracing.
Adding tracing to FilterGrouping would allow showing the effect of filter overrides in the trace output.
Comments: When the filter overrides are used, the overridden filters are not traced but the effective filters are still traced. As the issue described, override filter itself is not traced. Since the override filter is not traced, it might be confusing when the developer tries to figure out why global filters are not executed from tracing.