I've tried to undelegate using the method you described but all I get is an error. I've also tried to undelegate using the manual steemconnect method and all it says is "oops, something went wrong."

The error I get at steemworld when trying to undelegate is here below. Do you have any advice?

10 assert_exception: Assert Exception !check_max_block_age( _max_block_age ): {} th_a api.cpp:288 broadcast_transaction_with_callback {"call.method":"call","call.params":[3,"broadcast_transaction_synchronous",[{"ref_block_num":48010,"ref_block_prefix":373082020,"expiration":"2018-01-19T16:20:30","operations":[["delegate_vesting_shares",{"delegator":"camb","delegatee":"irbot","vesting_shares":"0.000000 VESTS"}]],"extensions":[],"signatures":["200a3bc607cece8a96eb43ef285a4e442b07dbd49bf78c301151d2df01c7f9e7c737aa5d81aeca621e184fda46d6849b3d4d55b920545b52bcda9964e785dcddcb"]}]]} th_a websocket_api.cpp:124 on_message (see err.payload for the full error payload)