Let's see the entire plant, please.

Ok, here's a picture of the entire plant...

so it was one random branch or leaf cluster ...?

probably shipping damage.. wither to the store.. or to your house ...

i suspect you solved the issue ... when you pinched it off to take the pic ... brilliant .. lol ...

ken

I know the plant looks very healthy at first sight, but 50% of its leaves have dark spots under them... and the new leaves have tiny red/brown spots all over them, too...
Thanks anyway I guess...

Hi!! I know this is a couple years old, but did you ever figure out the cause? My plant has the same issue!

I recently purchased an umbrella plant and have the exact same issue. I have been searching the internet trying to find out the cause with no luck.