Customer questions on Channel mapping inside the I2S stream

The CEA spec has channel mapping like in the picture below: Basically, the first I2S data line has LEFT and RIGHT and the second I2S data line carries the LFE1 (subwoofer) and FC (CENTER)..and so on for all the 8 speakers (on a 7.1 system).

This is how the connections are made in the layout, but when listening, anything coming from the DSP has the LFE1 and FC swapped. In other words, from the speaker terminal you hear CENTER channel from the subwoofer output..

It seems like the DSP decoding channel order is FL / FR / CENTER / LFE / … instead of FL / FR / LFE/ CENTER

Is this normal or some settings hat can be changed?