Hat tip to kruser in the railroad forums. Thanks for making me aware of the 400ms digital delay. I set all my airband analog to 0 and my scanner is behaving better on airband VHF and Milair 225-400.
When the scanner detects a signal it will wait for whatever amount of time is set in that field (default 400 milliseconds) to see if it is an analog signal or digital signal. This will clip the beginning of the transmission. But if the signal could be digital, it will prevent the data from being heard for a split second.