See video first I’ve been having this problem in which a material is automatically duplicated when apply. I was able to pin down an replicate the issue after several trials. First of all, it only happens with materials that have transparency. When a material with transparency is created and applie…

Materials with transparency automatically duplicate when being applied

MikeWayzovski April 20, 2018, 11:31am 2

Also see this thread:

1 Like

Adding a color modified texture to a custom materials list on Mac

Topic		Replies	Views
Materials get copied automatically Extensions materials	7	1034	March 6, 2018
Color swatch materials ignoring meta data (name, etc.) SketchUp	16	1715	November 25, 2016
Texture in double Pro	9	1017	January 19, 2020
Materials issues Pro	42	4777	February 28, 2019
SketchUp on Mac is Creating Additional Swatches and Painting Solid Color Pro	9	1840	July 20, 2018