Issue:

Can not get 3D Manipulation to work in Arnold 6 Maya 2020.

00:00:00 1126MB WARNING | [mtoa] [<built-in>] [node aov_write_vector] Assigning temporary node id 1138176 to associated Maya type name aiAovWriteVector.

Solution:

Follow these instructions to resolve the issue:

1. Close Maya and install the latest version of the Arnold plugin (mtoa). Download the plug-in from Solid Angle 
https://www.arnoldrenderer.com/arnold/download/

2. Reset Maya to default user preferences. This will rule out the possibility of corrupted modules causing the problem.

See also:

• Unable to open a file previously working in Maya
• [Update]: MAYA 2020
• Super Renders Farm– Powerful & Smart cloud render farm.