Q.Indoor Bird Of Paradise Leaves Splitting And Only Partially Unfurling
I have what appears to be a thriving (very tall and broad) indoor BOP plant but as it emits new leaves the majority of them split and only partially unfurl. I have three leaves now with unfurled points on them. I have read recommendations to spray them with light soapy water to loosen any gunk causing them to stick along with an increase in water. Is this correct and/or are there other suggestions to get them to open. They look very odd to say the least.

Certified GKH Gardening Expert
It can help to do so, but this is caused by a lack of humidity.
You will need to bring the humidity in the area up, way higher, than a typical house would be. A humidifier can help, drastically. A low tech method would be adding a tray filled with pebbles and water under the plant.
Here are some articles that will help: https://www.gardeningknowhow.com/houseplants/hpgen/raise-humidity-for-houseplants.htm
https://www.gardeningknowhow.com/houseplants/hpgen/houseplants-that-increase-humidity.htm
https://www.gardeningknowhow.com/ornamental/flowers/bop/bird-of-paradise-as-a-houseplant.htm