Monstera growth drying out before they unfurl

This is Fabulosa. I got her in March and repotted her in May. She’s steadily been growing until recently all new growth has dried out before it shoots out/unfurls. I’m aware I have multiple Monstera’s here and plan to repot in Spring (unless you tell me otherwise). I live by the beach in Southern California so we have sunshine 90% of the year (Zone 11a).

I don’t water that often and she’s in front of south facing window. She’s also the only plant I’ve ever had flourish. Does she need to be repotted? left alone? Fertilized? She’s in special Monstera soil I got based on Reddit @monstera posts. I ordered a humidifier to help with humidity. What’s the diagnosis?