@semhar No crack in my laser tube, but there is a small scratch, that looks like a reflection, but is not.
Other than the very small scratch on the left side of the tube, the rest of the tube looks fine.
I did test the following note from Glowforge Support, which I found very confusing.
"Hi Tom,
I see you already posted about this in the forum and are getting help there, so I’ll close this now. If you’d prefer to handle it privately, just let me know and I’ll close the forum thread and we can continue in email.
Best,
Semhar"
Not sure if we are only supposed to use the forum or email, but not both or what.