block icon changing position

Dear all,
I am working by PCS7 v7.1 & i made a custom block icon and i made compiling for os after that i arranged my screen .

But later when i did compiling i found only my custom block icon moved to the original position ( top , left ) corner in screen .

Please why this happned , really i need to know .

Thanks in advance,

Maher

Hi

Don't know. But in my case it does not happens, and it should not.
Is this happening every time you compile your OS?

Yes every compiling

hi,
No idea why this is happening. Only work around I can think of is un-check "update block icon" of that particular WinCC PDL.