Welcome to the forum. I am not having the same problem that you are. In order for us to help you, can you be a little more specific?Is it the Glowforge interface that is giving you a problem or your graphic design program? Once you have artwork on the Glowforge working area and a Proofgrade material selected, you will have speed and power setting automatically generated. In order to see what those setting are, click on the arrow next to the procedure and the pop out screen will show speed and power settings. There are lots of knowledgeable people on the forum, but we need more information from you in order to be helpful.
As I’m in France, I can’t buy proofgrade material (shipping is too much expensive). So I use only non proofgrade material. The Glowforge interface allow to save presets. So for each material, I saved presets (like for 3mm MDF, I use 160 speed and 100 power with only 1 cut).
This morning, all the presets are missing. They have dissappear. I tried to save new ones (as I get the parameters written in a notebook), but it doesn’t work. It’s a pity because using this kind of presets make me gain a lot of time.
This problem is way above my knowledge and like others suggest, it may be the browser or something the Glowforge team is going to have to discuss with you. I’m sorry I was no help. I agree the presets save lots of time as my notebook is tattered and filled with settings I can’t always find quickly. Good luck.