Heat Exchanger with autosized flow rate generates warning about flow rate

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I have a HeatExchanger:AirToAir:SensibleAndLatent object that is generating this error.

** Warning ** HeatExchanger:AirToAir:SensibleAndLatent "DOAS HEAT RECOVERY"
**   ~~~   ** Average air volume flow rate is <50% or >130% of the nominal HX supply air volume flow rate.
**   ~~~   ** Air volume flow rate ratio = 0.446. Environment=MIAMI INTL AP ANN HTG 99.6% CONDNS DB, at Simulation time=01/21 00:00 - 00:15

*************  ** Warning ** HeatExchanger:AirToAir:SensibleAndLatent "DOAS HEAT RECOVERY":  Average air volume flow rate is <50% or >130% warning continues. Air flow rate ratio statistics follow.
*************  **   ~~~   **   This error occurred 830 total times;
*************  **   ~~~   **   during Warmup 0 times;
*************  **   ~~~   **   during Sizing 0 times.
*************  **   ~~~   **   Max=0.499836  Min=0.438976

Looking in the engineering reference,

but the Nominal Supply Air Flow Rate field is autosized.

Is there a recommended way to fix the error?