After update have no tutorial/case files available on the home page.except fabric and sign test files. I have a Snapmaker 3 A359T do I need to go back to 4,8,2?
could you share a screenshot?
When I updated to 4.9.0, it was trying to give me 3D print settings in laser and other oddities until I looked into the settings. It had changed my machine setup to a snapmaker original. I had to set up my machine selections again, so look there first.
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Already uninstalled but will try again tomorrow and get a screen shot.
Thanks, you were right when I install the update settings all revert to original snapmaker
Glad I was able to help. 
Reviving an old thread for a new machine I bought.
After updating from 4.8.2 to 4.9.0, I have the same issue of needing to select my machine from the drop down menu. However, after selecting SAVE, Luban refreshes and reverts back to the Original version machine. My machine selection won’t save. I’ve gone to 4.9.1 and now to 4.10.1 with no luck. If I revert back to 4.8.2, my machine is correct, but I lose all of the newer features. What am I missing?