Differences between IQ Data

Hello everyone, I have two nrf5340 kits. I run "Bluetooth Direction Connectionless" applications with these kits. I also have a CoreHW brand AoA antenna. My question to you is, the code is completely native, I plotted the IQ data I received at two different times as amplitude, but there is a clear difference in the sampling timings between them. What is the reason for this? Please pay attention to the positions marked with dots. My question is, is it possible to give an offset in the sampling time? If the answer is yes, can you help me with this? (I plotted my languange so bottom of the graphic means to sample number and left side of the graphic means to amplitude)

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