"non-buffered rendering" cause crash in some games.

[RADAC]

Hi, thank you this nice emulator.

PPSSPP crashes when load the iso file if "non-buffered rendering" mode selected.
this case was confirmed MHP3 (ULJM-05800) and MHP2ndG (ULJM-05500) to crash.
if "buffered rendering" mode selected, i can load the iso file and then i can change to "Non-buffered rendering" mode.

i restored PPSSPP's settings to default and i have tried several build.
OK -> v0.9.8-1020-g48d4c4c-windows-amd64
OK -> v0.9.8-1030-ge8ab820-windows-amd64
NG -> v0.9.8-1033-g7c70f71-windows-amd64
NG -> v0.9.8-1042-gb57c3e0-windows-amd64

Windows7 x64 SP1
AMD A10-7850K iGPU Radeon R7 Graphics Catalyst 14.4


thank you.