Sending NRPN to the Digitakt

So per the manual you can lets say set the Filter via NRPN as: MSB (1) and LSB (20)

Yet I send something like this out:

176, 99, 1, 176, 98, 20, 176, 6, 20, 176, 38, 61
176, 99, 1, 176, 98, 20, 176, 6, 20, 176, 38, 60
176, 99, 1, 176, 98, 20, 176, 6, 20, 176, 38, 59

Supposedly per this:

https://www.ableton.com/answers/what-s-the-best-way-to-send-nrpn-data-from-ableton

the 3rd param should be the MSB value and the 6th is the LSB. Looks ok right?

But nothing happens. MIDI CC works just fine. Any ideas?