Reply To: Why reference image opacity always reset to 1 anytime I add new mesh ?

@kwin I do not know of any setting that could cause this behavior, but just to make sure, try to Reload Factory Settings.

Did you try key-framing the Opacity as a workaround?

Or adding new Meshes in Edit Mode (you can always separate them later if you wish)?

And yes, you can enable the Import Images as Planes addon and set the Alpha in the Material: