Yes, I realise that. However, that's after you've installed it......    I am talking about just looking at the installer file before you've installed it.  Mind you, you can also check the details tab of the file properties and that will show you the version no of the installer.  This would be useful if you happen the have multiple copies of the installer in different folders.

Checking installers is not the question though. The only thing that matters in this case are the running versions. From the information reported by the OP:
BA is at 3.0.9
CbB is at 24.04.1 Build 31
OS is Win7 SP1 (there may need to be more info provided but this request would have to come from BandLab)
 
I believe these are the critical pieces support needs for this problem. I was just trying to help the OP flesh out his report. It is up to BandLab to sort this out.

Sorry you took it that way, and obviously the answer to my question was, yes I do have back up and I do have my older version still installed. In your OP you didn't mention any of this so all I could do is assume the worst. Glad you were not shut down by this.