Ever get an exception when enabling feed synchronization from the feed api?
IFeedsManager fs = new FeedsManagerClass();
Exception: Task image is corrupt or has been tampered with. (hresult:0x80041321)
I’m not entirely sure what causes this, but basically the background task schedule job has become corrupt. The simple fix:
1) open an elevated command prompt
Which deletes the old task and then recreates it.