On Linux 18.04
using Lightburn 0.9.19
While cutting and engraving name tags(fronts and backs), I have a number of Fill layers and was turning the outputs on/off for the different layers depending on the engraving I wanted(front/back/front1/back1/etc). With “Cut Selected Graphics” enabled if you have nothing selected and press the Start button you will get a warning indicating there are no selected graphics. But, if you select an item having the output turned off(Show turned on), it will not give a warning when you hit the Start button. It will still frame the selected item but that is probably the correct response.
I’m thinking it might be handy if it still warned when you did not have a item selected which had the output turned on no matter if something else is selected or not.
PS, I had cut selected graphics turned on because I could not get it to engrave each of the 4 groups(1 per name tag) one by one instead of scanning across all 4 at a time. And I did use Optimization Settings-Order by Group added to the list. What that did was it would outline the first group and then start scanning all of them again.