cant capture linuxmint expanded program menu.

everytime when i capture the whole screen, the menu will automatically disapear first then screen is captured. hence there is nothing that i want to capture in the captured photo.

i want to capture the content of the linuxmint menu, because i need help with something that i want to show in forum. but i cant capture it, due to this screen capture bug.

i was using ubuntu 18.04LTS, and it was perfect, but when comes to linux mate, it does not work.. i have being trying to get a distro working on my pc, , tried, ubuntu, tried zorin, tried feather lite, tried linux mint cinamon, but every distro has got bug of it own. none is all working.. sigh!!

i know i should be grateful that someone work their ass off that we use it for free.. but sometime just so down right disappointing. especially when i have to go thru so many distro to get something i can manage as new linux user. after so many frustration and disappointment.. i cant help it but sigh ..

Distro: Linux Mint 19.2 Tina
Desktop: MATE 1.22.0
Kernel: 4.15.0-54-generic x86_64
base: Ubuntu 18.04 bionic
Shell: bash v: 4.4.20