My crazy situation goes like this....
At first I had 2 BitLocker volumes that unlocked them running an .bat file, do backup and lock them back by a bat file again.
Everything was peachy and roses till for my (dumb) reasons had to format one of the two drives.
Then re-enable BitLocker to the formatted drive.
Now when I went to unlock the volume I run a bat file as usual and I meet the dreadful error unlocked but cant be accessed (for no reason).
Accidentally I found a workaround for that problem, if I do an unlock-lock-unlock than everything is fine and the drive can accessed normally!
And to drive nuts the whole thing that is needed ONLY for the newest BitLocker volume, the old BitLocker volume works on a unlock one time use it right after manner as usual.
Only the new BitLocker volume needed to be unlocked twice (facepalm)