Operating system: win 10
Short description of error
There is a mesh with 2 uv channels. 1 color 2 lightmap. make a duplicate of the mesh. select the first mesh select 1 uv channel. select the second mesh, select the 2 uv channel. select 2 meshes, click the tab, but the channels remain selected are different. one channel is not automatically selected for 2 or more meshes. in the channel list the channel will be highlighted but the selected ones will be different. this is confusing and leads to unnecessary consequences. I thought I only edit the lightmap, and as a result, the color also broke.
Exact steps for others to reproduce the error
Based on the default startup or an attached .blend file (as simple as possible).