I have just noticed the 8.0.10 update is now out!
In the list of fixes its says:
RECORDING: Fixed an issue where the cursor jumped back to a wrong position when using ReRecord
RECORDING: Fixed an issue where using ReRecord led to previously created tracks being removed
Anyone who has installed the update, could you confirm if Re-Record has actually been fixed and now usable? From the above, it certainly looks like it! This is such a happy day if so!