Can you check again for exact verification which certificate has made the problem here? If you could send it to the support shortly, we would check once whether one can avoid these errors in the future. Concerning the startup behavior of the client, there is probably a problem that the autostart cannot be written to the registry. In this case you can find a remedy by copying a shortcut to the client into the autostart folder of Windows. There is already a workaround for this problem, which will be fixed with the next release.
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