@manu225 what he implies I think is that those buttons are not visible.
As I have that exact issue on WordPress 6.1.1.
I can see an error like this: Uncaught TypeError: jQuery(…).wpColorPicker is not a function
and this warning: MouseEvent.mozPressure is deprecated. Use PointerEvent.pressure instead.
Not sure if it helps.
I can force the buttons to appear by removing the display:none parameter, but they don’t do anything afterwards.
The plugin crash when I try to save an image but afterwards if I launch it again the image is saved and clicking on save settings makes it crash again still with the wpcolorpicker error.
Also, the website I work on is offline as I try to build it properly before using a web hosting server.
thank you for your help