Weird... I took out a small amount of BTC from Coinbase Pro, generated a new receiving address in Electrum, and as soon as the transaction came in, the BTC was transferred to an address which I do not control...
Here is the withdrawal transaction:
And here the one that sent the BTC out:
I really do not understand, I have also imported the receiving address into bitcoind, which is still syncing.
Any help would be highly appreciated.