[ssl] data load stuck with 'Socket Exception was unhandled'

Hi Jeff,

I don't see the issue without ssl but see it in maby tests with ssl.
I'm not 100% sure that it is the client problem, but I use the same sdkd code and there is no such problem.

in short, I see that not all the data has been downloaded, and tests hang. when I stop the command line to debug, I see the following exception. Could you take a look at the problem? my research have so far failed. I am ready to provide the environment or provide more detailed information if required.