I have a signal going to RB but as soon as I press record it is no longer there. Recording is blank,

Use Options-Prefs to make sure you are recording the right input port

Options
Prefs
Audio tab
Drivers
Check the selected inputs

Otherwise need more clues on how you are doing it

I updated to 2018 on Sunday but I am having other issues. I will create a new thread for that.
Thanks

OK
The RB input VUs show the default Windows input signal .. this is good because we now know your signal is making it that far (to the computer).

After that, it becomes a question of where RB is expecting to receive an input signal from (this is set in Options-Audio Tab-Drivers Button on the input side).

For some systems, this setting may need adjustment, especially when multiple options are available. My first thing I check is to make sure RB isn't using 'SoundMapper' or such, but rather the actual expected input. SoundMapper (and MIDIMapper) are Windows trying to make the routing adjustment for you, meaning the computer's first guess.
Many times over-riding this and assigning the expected input path in RB or PT works better. Once set and working, it should just 'stick' and work moving forward.

Hi Rich 59

As you seem to have multiple problems with you recent installation.
Have you downloaded and installed the latest patches from the forum pages .
BIAB build 510
Realband build 4
Just a thought
Mike

I decided to update to ultrapak 2018. But thanks anyway