Hi,
I have problems with my Glowforge 2018 too : Repair or not repair? Europe dilemna
I have open a ticket with the support. They have proposed me an exchange with a refurbished glowforge even if the warranty is over. The main problem for me is that I’m not in the USA and the major cost of the operation is shipping cost+customs duties and it costs and arm and a leg.
But I think whatever the problem on your machine, I would advise you to open a ticket and see what they said and proposed you as solution. Maybe you willhave a good surprise or at least you will know what are your options.