Last week I updated my GRBL to 1.0c to use laser and spindle.
Last week I ran a project with Easel with no issues after the installation of GRBL 1.0c.
Today I opened a project and when I went to Z probe the ability to Z Probe is missing from Easel. It is now a manual operation.
Easel stores some information in the browser cache. Did you clear your cache at some point. No reason for 1.0c to cause problems with probing.
It is like the the original setup of Easel wasnt working. I went back and reran the Machine setup and it seems ok now. The cache has not been cleared.
Now to setup my steps again.