Texture render target 2d bug

Texture render target 2d render Incorrectly in Fullscreen Window mode.It only works right when Size X and Size Y as same as game render resolution.

Hi TyrealGray -

Thank you for the report. This is a known issue currently in 4.7.6 and 4.8.1 but has been fixed in the internal main branch. The fix should be pushed out with the next major engine release.

Thank You Again -

Eric Ketchum