Hi ,
Thanks for your response, and sorry for the late reply. ^ ^
I have tested times and times, i found that if the RECOMPILE toolbar button disappeared the hot reload is not worked any more too.(So, these two problems may be just one problem.)
my test process:
1, create a new c++ third person template project.
2, build and run editor, the RECOMPILE button is lying on Play button's left.
3, add a class member variable on AProjectCharacter( ProjectCharacter.h, line 28 behind float BaseLookUpRate variable)
UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = Camera)
FVector moveTargetPos;
then press F7 to compile project.
after compiled, switch to editor. open the ThirdPersonCharacter blueprint class(data only class), you will find "Move Target Pos" variable in Camera category.Close the blueprint class window to prevent other hide problem with hot reload.
4, switch to vs2013, repeat step 3 to add a moveTargetPos2.
5, repeat step 3 to add moveTargetPos3.
6, repeat step 3 to remove moveTargetPos3.
7. repeat step 3 to remove moveTargetPos2.
8. repeat step 3 to add move3. then... you found RECOMPILE button disappeared and move3 is not found.
i have tested 2 hours for this, it seems the key is hot reload times, it has nothing to do with variable names and variable count.
sometimes hot-load failed on 5th reload, sometimes on 4th, or maybe on 10th. add 10 variable one time is OK.
Cheers.