LCD_ALERTMESSAGEPGM fails on second call

I have a custom M-code in my firemware that manages a ParkPause sequence when the Graphical LCD button ( kill button ) is pressed, and allows for the Pause, Park, and Resume Print.


Wanting to update status on the bottom line of the LCD, and using :

LCD_ALERTMESSAGEPGM("ParkPause");

which works great and changes the bottom line of the LCD screen, but when I try to use the same call again a few lines later, the LCD does not update :

LCD_ALERTMESSAGEPGM("ParkPause Restart");

What am I missing ?

Got it working.

So LCD_ALERTMESSAGEPGM is only used for a last message before a kill, stop, terminate, etc.

I should have used LCD_MESSAGEPGM which displays all the messages that I want at the correct points.