Send yourself 5000 coins again. Try again. It's obvious you didn't send exactly 5000 coins.
I cannot send myself 5000 coins again as it states that I have insufficient funds even though the 5000 show as available on my dashboard. In my coin control is shows my original amnt over 5000 as (change) and shows 2 masternode payouts but the 5000 actually in the masternode doesn't show up.
In transactions the payment to myself (masternode) is shown as the -0.0001 SYNX fee.
So if my vin cannot be allocated yet the masternode is somehow still paying out what is going on?