menu size not correct when start Creator on dual monitor with different dpi

the first time you click the menu bar, the size of the editor menu is way too big.

when you close it and open again, the menu go back to normal.

way to reproduce:

I have 2 monitor , primary one with 100% scale, another one with 150% scaling.

This issue will happen when I start Qt Creator on Primary Screen and drag to second one.

click the menu , the munu is abnormally big , close the menu and open again, the menu

is corrent now.