The way the insert , doesn't keep up.
Is it important to keep the Processor in the FX loop of the interface at the same bit rate? Like can I use a USB Roland thing at 44.1k sample rate, on a DAW and interface set to 48k ? Will that screw up midi devices looking for a master BPM or timings?
Does matching a 44.1k sample rate with 48k have anything to do with midi timing?
No latency with just the Console program. That tells me you are listening to the recorded track in Reaper when you're recording the bass and not the direct monitoring from the UAD Apollo. I might be wrong, but that is the most common cause of latency type delays like you're seeing.
Where or how should I be monitoring?