Sequoia GPS data varying



I am using Sequoia on my custom drone. Recently, I went on a small mission. The data collected was having a very high variation in GPS location from one image to the other image next to it.

Is this the error of sunshine sensor calibration? If yes, as per the documents, when I turn ON the sequoia, it shown green led which means it is already calibrated. Even if I have to calibrate it under any condition, please brief out the calibration procedure.

Also, my sequoia, when connected with computer through wifi, shows NO SD CARD found ERROR message. whereas, I have already inserted an empty SD card in a proper way.

Please help me resolve the issue ASAP.

Waiting for your helpful solution.

Thank you