Hotspot transfer and payment issue

[simonc129]

I bought a second hand Bobcat 300 miner last week. I plugged the hotspot in to my new location (office), seller changed the location of the hotspot as well. Since about 7 hours ago before I wrote this msg, the hotspot started broadcast/witnesss/and also receive mining rewards - these should mean the hotspot is working properly recently. The seller (right next to me) is now trying to transfer the hotspot to me but on the final page of the transfer screen, it says "hotspot has not had Beacon or Witness activity in the last 1200 blocks" and the transfer button is grey.

My Hotspot name is "Electric Chrome Guppy". Not sure whether it is any chain sync problem. Would very much appreciate it if your team could help to look into this.

also the seller tried to make other HNT payment, all ended up as "Failed Transaction", the msg shows: Unable to complete payment transaction to for reason: {invalid,bad_nonce}. not sure whether this issue is linked to the transfer issue. dont think the seller is trying to scam me.