Detect reader stuck

When i try to use the detect reader function it starts with emulating the mifareclassic card which goes sucessfull and the reader beeps. After that flipper tells me to move away from the reader and then place flipper on the reader again. Flipper will show 0/10 keys collected i have held it there for about 1 minute but nothing happens. Must i be more patient or is it not working with the reader i am trying to read keys from?

Same here, I have the same problem.