Emulator

What's the problem?
Sometimes i can't push objects that must be pushed. for example if i get close to another objects then always action button appears and says like "examine" or "grab". Now i meet an object that i were able to grab only once somehow, but i can't do anything with it anymore, but it must be pushable for 100%. action button simply do not appears when i get close to that object.

Dolphin version with the problem 6801 - 6839 and maybe all previous

(optional) Dolphin version that does not have the problem:
unknown

Operating system and version:
32-bit windows xp sp3:

Game ID (as it appears in game properties, Ex.: "GZ2P01" or "RSBE01"): GQSPAF

Build command-line (not on Windows):

Was the ISO a plain dump from disc, compressed and/or scrubbed?
don't know and i think it's no matter. the problem with z buffer

Please provide any additional information below.
on the screen that object that must become pushable when you shot it with darkness from sorcerer's ring. changing video plug-ins do not helps