Any one can know I lose my BTC due to a bug in the blockchain.info wallet ?
This question was answered above directly by the man himself. Unfortunately your coins are not lost due to the RNG bug:
It is correct. Click "Show scripts & coinbase" for these both transactions. You will see that both used the same random number: 04b8c7b27846a1df35a87763f75b421a4f8148d17ca91c2daab6838aa5b04d48e373bba0cc1e081 be696bc626296febcdccab5336a43b8861a91afa57865bbb3f5
That is the public key of the address, not the random number (public keys always being with 04).
These addresses are not affected by the random number issue.