I tried to view a model suggested in the Khronos glTF sample models repository in the PlayCanvas glTF Viewer.
However, an error occurs when loading the texture.
Probably the cause is that the glTF model references the texture with a relative path.
However, since the relative path meets the glTF specifications, it would be nice if it could be displayed without error in the Viewer.
I can confirm the issue and have created an engine issue to track this.
Thanks for the quick fix.