adc~ no output - on Mac M4 Max Sequoia 15.2

[mathsound]

Using PurrData 2.19.3 on MacBook Pro M4 Max OSX 15.2. Audio interface MOTU UltraLite mk3 into Firewire into Thunderbolt/USB3.

Everything works except adc~ is not delivering any output, checked with a simple patch, adc~ into dac~.

PurrData 2.-19.3 is using PD 0.48.

Checked with exact same patch in PD Vanilla 0.55-2, and adc~ does deliver output with the same setup.

PurrData 2.19.3 is being used as PurrData 2.20 is reported by the OS as -

“Purr-Data” is damaged and can’t be opened. You should move it to the Bin._

so I cannot run the latest Purr-Data 2.20.

/

It was suggested I tried the last build of PD-L2Ork for Silicon, Version 20241224 (rev.8b297e12)
adc~ works! this uses PD 0.55.