libGL error: MESA-LOADER: failed to open iris (search paths /usr/lib64/dri)

I need to use a molecular visualization system – pymol. After upgrading to fedora 32 (beta), libGL errors start to emerge and pymol's graphics ceases to function properly. Here’s the error information:

libGL error: MESA-LOADER: failed to open iris (search paths /usr/lib64/dri)
libGL error: failed to load driver: iris
libGL error: MESA-LOADER: failed to open swrast (search paths /usr/lib64/dri)
libGL error: failed to load driver: swrast

Please help! Thank you.