I just wanted to share some information on the failure of one of the newer Shimano Dynamo hubs, a DH-UR705-3D. It seized up on me and when I opened I found the magnets inside completely corroded and some had shattered.
Has anyone else had similar experiences? This is after only one winter riding with the hub (in Switzerland, temperatures can be below zero Celsius, the bike is stored indoors). Severe case of condensation inside the hub?
Shimano won't warranty it as I've opened it myself (which I kind of understand, but not that I think it makes much difference with a failure of this type).
Images below:

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