Querying videos with cursor results in "Invalid value for offset: 600"

The “Invalid value for offset: 600” could be explained if the “cursor” would just be an encoded offset

Yeah, it’s just base64… The cursors in the above example are as follows:

{"b":null,"a":{"Offset":100}}
{"b":{"Offset":0},"a":{"Offset":200}}
{"b":{"Offset":100},"a":{"Offset":300}}
{"b":{"Offset":200},"a":{"Offset":400}}
{"b":{"Offset":300},"a":{"Offset":500}}
{"b":{"Offset":400},"a":{"Offset":600}}