The "Shear Tool" in Adobe Illustrator appears greyed out or inactive due to specific selection requirements, object locking, or layer visibility settings. The tool is not malfunctioning; rather, the software is preventing its use because the criteria for shearing have not been met.
If you want to shear a pattern fill inside an object (not the object itself), the Shear Tool will still be active, but it won’t work as expected. Instead: why is the shear tool greyed out in illustrator
You clicked into a text box with the Type Tool. The Shear tool is greyed out because you can’t shear individual characters while typing. The "Shear Tool" in Adobe Illustrator appears greyed
If you are trying to shear a directly from the library, Illustrator occasionally restricts certain transformations depending on how the symbol was defined. why is the shear tool greyed out in illustrator