Help with Podocarpus bonsai

[Hairwitchx]

I inherited this tree from a friend, It was in poor shape as her cat was eating it. I was able to get new growth and keep it green, but now I seem to be loosing a whole section of it. It was fine last week and it’s still green, just dry and shriveled. Could anyone tell me what might be happening and how to proceed? I’ve researched a bit but I can’t find info for branches that haven’t turned brown, and I’m so new to house plants!
ive attached some photos. It lives a few feet from window with a sheer curtain. It tends to get bright diffused light 2 hrs every sunny evening and has low light for most of the morning and afternoon as it’s far away from a southern window. I’ve been watering it about every 5 days (or when the top soil is dry) but I haven’t fed it yet

 

[choppychoppy]

The reason it's suffering is bc this is a FULL sun tree. It needs to be outside in the sun. It's not a houseplant.

 

[Hairwitchx]

The reason it's suffering is bc this is a FULL sun tree. It needs to be outside in the sun. It's not a houseplant.

That makes sense. The tag said to place in a bright location with partial sun, where I live spring is cool (3-8 Celsius) and very rainy, so keeping it inside made more sense. I’ll try keeping it outside now that it’s warm