when vertically placing a line of rose quartz lamp a comparator will only output a signal if its placed on active lamp

I also noticed this( here), it appears that the code for the rose quartz lamp just checks the block immediately next to it as opposed to two blocks away.

I can only assume this is a small oversight in their implementation, primarily caused by the vanilla/normal way to have comparator outputs is with a dedicated method, however this method lacks information on the direction that the signal is being checked from.

Rose quartz comparator code
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Item vault comparator code

If this still occurs on 0.5.1f open a new issue