Bugs in DJTT_S4_Mapping

First of all I want to say that I love this mapping and the work that do DJ TechTools is great.
I just want to point out some features with the mapping that seems strange to me.

It starts when you add two samples in Deck D using the > button.

-You will see that leds are not displayed correctly.

-When you load a sample, you have the FX Unit 4 that is controled by the JogWeel. Ok that's fine but if you touch Shift+TempUp (to select jogFX) it is not possible to control the unit4 (on sample deck) with the jogWeel (you'll need to load another sample to have again the control of the unit4 on sample deck)

- When you control the effect on Unit4 (just after that a sample has been loaded) you can not use the button Effect Param Reset, Effect Button1, Effect Button2 to control the unit 4 (they still control the unit2)

- And you can not use shift+Dry/wet Button to select the effect you want.

Are they desired features?
Am I doing something wrong ?
Or Are they bugs?

Thanks