smth. incorrect in RPR reflection cathcer. It doesn't reflect an objects/surfaces with image textures.
Check my simple scene where Suzanne object was made with RPR material library. There is no texture reflection on the plane.
RPR 2.2.1, Blender 2.81a, mac os 10.15.2, RX 5700 XT
Hi. Was checked your issue and as a result, RPR have not so strong reflection result with reflection catcher:
without Reflection catcher:
with Reflection catcher:
so, that sounds like an improvement for the current feature. Thank you for request