Amount does not balance to gross error with the remaining amount = tax amount

We're consistently getting Error ID 0088 Amount Does Not Balance to Gross when creating a voucher match to open po (P4314) but only in our Canadian company.  The amount remaining (REMA) is exactly the offset of the Tax amount (STA1).  All U.S. companies will voucher properly.  Below is a screenshot of a test transaction in our dev environment.

We do use Vertex O series.  We're on E1 9.2.  We don't have AP summarization turned on and we have Account for Rounding Differences = .02 in P4314.  We do have Opt 1 on the currency tab of P0400047 set to 1 (Allow Value Added Tax).

I've looked though the various troubleshooting and implementation guides but don't see anything specific to this.