Day Trader’s Weekend Aftermarket Lounge 1-3 Feb 2019, page-32

"so I sold some for a cheeky profit".

In other words, you knew full well you shouldn't have "sold" anything,

whilst they were in the process of being transferred.

In reality, the shares shouldn't have been available to sell,

to protect you from yourself.

Should be able to sort it, without buying them back,

but yes, a dumb move on your part.