They are all set to "transition=yes" and I am using the "A" key to swithch between views. Below is a snippet from my (PMDG B737 aircraft.cfg"). All I have changed was to add "transition=yes" into all 3 views, but it doesn't change anything:
[CameraDefinition.010]
Title = "F/O Seat"
Guid = {8ff6c134-098d-409f-baec-caba3f683f98}
Origin = Virtual Cockpit
MomentumEffect = YES
SnapPbhAdjust = Swivel
SnapPbhReturn = False
PanPbhAdjust = Swivel
PanPbhReturn = False
Track = None
Transition = Yes
ShowAxis = YES
AllowZoom = TRUE
InitialZoom = 0.3
SmoothZoomTime = 2.0
ZoomPanScalar = 1.0
ShowWeather = Yes
XyzAdjust = TRUE
xyzAccelleratorTime=2.0
ShowLensFlare=FALSE
Category = Cockpit
PitchPanRate=30
HeadingPanRate=75
PanAcceleratorTime=0
InitialXyz=1.0, 0.0, 0.0
InitialPbh=0, 0, 0
[CameraDefinition.011]
Title = "Overhead Upper Panel"
Guid = {C541B465-5164-437b-B037-5588708AF519}
Origin = Virtual Cockpit
MomentumEffect = No
SnapPbhAdjust = Swivel
SnapPbhReturn = False
PanPbhAdjust = Swivel
PanPbhReturn = False
Track = None
Transition = Yes
ShowAxis = FALSE
AllowZoom = TRUE
InitialZoom = 1.0
SmoothZoomTime = 2.0
ZoomPanScalar = 1.15
ShowWeather = Yes
XyzAdjust = TRUE
ShowLensFlare=FALSE
Category = Cockpit
PitchPanRate=30
HeadingPanRate=75
PanAcceleratorTime=0
InitialXyz=0.51, -0.05, -0.9
InitialPbh=-55.0, 0, 0
Transition=Yes
[CameraDefinition.012]
Title = "Overhead Lower Panel"
Guid = {4ca337db-ae88-4c5f-96ea-ddebbd2a86fe}
Origin = Virtual Cockpit
MomentumEffect = No
SnapPbhAdjust = Swivel
SnapPbhReturn = False
PanPbhAdjust = Swivel
PanPbhReturn = False
Track = None
Transition = Yes
ShowAxis = FALSE
AllowZoom = TRUE
InitialZoom = 1.0
SmoothZoomTime = 2.0
ZoomPanScalar = 1.15
ShowWeather = Yes
XyzAdjust = TRUE
ShowLensFlare=FALSE
Category = Cockpit
PitchPanRate=30
HeadingPanRate=75
PanAcceleratorTime=0
InitialXyz=0.51, -0.65, -0.7
InitialPbh=-55.0, 0, 0