Sending contract transaction to wallet, receiving two Transaction requests

Hey guys,

Im developing on my first DApp. At first I had some starting issues, but now that my contract Interaction via Web3 works Im good to go.
But now I went into a problem I didnt find a solution for yet.
I have ganache running and want to send a transaction via "contract.methods.methodName().send( {from: Address}), which is working perfectly fine. The only problem is, that its always sending two requests. Its no double method calling (I checked that many times with many techniques).
Closing metamask while in the transaction procedure will make the console say that the Promisses have returned Errors (which makes sense). Reopening Metamask then shows only one transaction anymore which I can confirm.

I am very thankful for any help
Greetings Luca