Yellowing pseudo bulb

[escualida]

Hi all, I noticed one of the pseudo bulbs yellowing on a laelia lobata that I have and was wondering if someone could tell me why this happened and what to do about it?

This is a fairly new plant to me, I've only had it for about a month or so and it was green when it got here. I haven't repotted it or done anything weird, it gets watered with the skewer method so there should be no issues there.