Money tree help!

Hello! I’ve had two small money trees for around 2 years. They’ve always been struggling, then fine, then struggling. This past week the larger tree has had a sudden surge of yellowing, with some odd browning with it. It is affecting leaves on all three trunks. I moved in May, and 2 ish months ago I moved it out of the mostly direct sun of the window and to a bright but indirect spot. Main tree is in a chunky mix in a terracotta pot, and I only water when dry (if I had to guess, every two weeks?). I don’t think ac drafts touch it at all. Wondering if it’s fungal? Pictures 1-2 are the tree in question, picture 3 is my second tree with one stem that has a bit of a weird yellow pattern. Need help on the main tree but figured I’d add a picture of the second tree that lives next to it. Thank you for any advice or tips in advance!!