RXTools won't boot properly on 2DS?

6.0 sysnand and 10.3 emunand running 10-02-15 RXTools build. I've used the same build on an o3DS and o3DS XL, and it boots just fine with MSET. I have to stop the boot by holding L first when I see the RXTools logo, then select boot to emunand or else I am stuck in a black screen. Before updating to 10.3, RXTools just boots fine on 6.0 emunand. I also tried booting with Gateway, and it just works fine as well in any version. Is this an RXTools bug or..?

Is this common for 2DS or did I...

RXTools won't boot properly on 2DS?