Could not find adequate dc_option for DC -2

[1wizard]

Hello.

Sometimes in exception logs i find this:

WTelegram.WTException: Could not find adequate dc_option for DC -2
   at WTelegram.Client.GetOrCreateDCSession(Int32 dcId, Flags flags)
   at WTelegram.Client.GetClientForDC(Int32 dcId, Boolean connect)
   at WTelegram.Client.DownloadFileAsync(InputFileLocationBase fileLocation, Stream outputStream, Int32 dc_id, Int64 fileSize, ProgressCallback progress)
   at WTelegram.Client.DownloadProfilePhotoAsync(IPeerInfo peer, Stream outputStream, Boolean big, Boolean miniThumb)

I am wondering where it even found dc -2, but it anyway have to fallback to correct DC as i understand.