What in gods name did they do to the P-61C

Four matches in a row now I've torn my wings going anywhere between 470-510 km/h in short turns. Four times now I've had to enjoy a 5-6 minute crew lock because of this.

Before the update that removed it's bomb sight (a move I still dont understand the point of) I could easily make these turns at these speeds without worrying. It was only past 600 km/h in sustained turns that I needed to worry about tearing. Has something been changed again or am I experiencing a very irritating bug?