Uploading employee face photos to Facedeep 5 using SDK

Hi, I have a problem adding employee faces to Facedeep 5 using the .NET SDK. The existing photo can be downloaded, but can’t no photo can be uploaded for specific user without photo. I also tried launching registration through SDK on the device itself and then trying to upload the returned image but still no luck. I’m using SDK version 44 with docs from 2019, so maybe this is the issue, but thats the only version I could find on Anviz websites.