Yes that is a known issue. It will be changed in the next update.
I think you said in a prior post that it could be fixed via build.prop edit. Can you confirm? As we could probably make that edit ourselves.
Thanks.
Yes that is true...look for this line
setprop mot.proximity.delay=150
Change the 150 to 800 or above.
Save build.prop
Reboot
If that line isn't there go to system/etc/init.d
Open 26_build as a text file
Change the same line.
Reboot
Pm me with questions.