[Error]: Cannot rotate or scale in the UV Editor in Maya

Issue:

When working in the UV Editor in Maya, the rotate and scale manipulators are not visible and it is impossible to edit the UVs.

Causes:

Corrupted Maya Preferences are causing incorrect behavior.

Solution:

To resolve this behavior, reset the Maya Preferences to default:  How to reset the Maya Preferences to Default.

See Also:

• 3D Manipulation not working in Arnold Maya 2020
• Insert edge loop tool does not create a new edge in Maya
• Super Renders Farm- Powerful & Smart cloud render farm.

Source: https://autode.sk/3bP1kQt