Recording latency can not be calculated

I ve recently purchased an Aurora16 with LT-TB and i am having some problems with them.

I can record audio and i also can route audio from its outputs without a problem but i somehow can not calculate the audio recording latency.

I used Logic trying to calculate it and i used two different methods both of which gave me the same result of zero.

First i used Logic’s own calculation plugin in which an input is selected and a ping signal is sent from an output to that specific input. Logic calculated this as zero.In my previous audio interface this was 106 samples.

Then i did a second test where i drew a one sample pulse signal in the audio editor of logic and routed that from an output and recorded that output back to logic.Then i checked how much apart was the signal recorded and it was zero samples apart.

In both methods recording latency seemed to be zero which is impossible according to my knowledge.

Please help me solve this major problem of mine.