One cannot leave the slightest room for excuses.
As soon as you have prepared the near field measurements of the drivers and ports for merging with the gated measurements, you will notice the resonances - by the way, only a two-channel measurement guarantees a clear phase relationship between the different measurements.
For a poorly designed small bookshelf loudspeaker this would look like this:
View attachment 91417
The pink curve is the frequency response of the BR port, with a nasty resonance around 1.2kHz (the sound pressure was corrected according to the BR port area).
In yellow is the frequency response of the driver and in red the resulting total frequency response of the speaker.
A baffle-step correction was also made so that the FR corresponds quite well to the reality of a free field measurement (like the NFS does).
You can immediately see how (with very high probability) the BR-Port resonance will affect the overall frequency response of the loudspeaker - the overall frequency response of near-field measurements only reliably represents reality up to about 300-400Hz, but can still be used for a quantitative estimation of the effect of the BR-Port resonance.
Either Ascend is not able to perform, calculate and interpret such near-field measurements or it ignores their results knowingly - understandable for a DIY beginner with little knowledge, but unforgivable for a company that makes money with its products.