Nebulae can be faint, especially if viewing from light polluted skies. The trick with observing deep sky objects is about training yourself to discern the slightest glimmer of light. They won't look like long exposure photographs.
The reflections are possibly a result of the eyepieces not being coated? Not sure. Certainly sounds like internal reflections of some kind. Do you get the same with the other EP?
Best,
Markus
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