4 seeds of nepenthes maxima "giant wavy" germinating on sphagnum. Nothing in TC yet. No fungus, no germination. But some seeds seem.... swollen.
Several other nepenthes seeds are also starting to germinate on sphagnum - very early hints of green.
Nothing in TC
Be patient with the seed in TC. Sometimes, it is helpful to keep the cultures in the dark for a period of 7-10 days after sowing. That has proved successful for me in the past; and has generally "sped" germination by about ten days, over those under light.
Also, wasn't 50% MS used as germination media? That can be an issue; it's a bit strong. In the future, try 1:4 or 1:3 and soak the seed in distilled water overnight before sowing . . .