Can't open EXR files in RV

Hi, I’m hitting errors anytime I try to open an EXR file in RV. In the error console, I see:
“ERROR: Open of ‘[/Desktop/image.exr’ failed: unsupported media type.” even when I’ve set the file type to EXR.

At the top of the RV screen itself, I see “Could not locate “/Desktop/image.exr”. Relocate source to fix.”