I started working in a project management role 6 months ago. I work closely with developers and one in particular really helped me learn the ropes when I started. She was also really productive and always got work done on time. We also got on very well.
I've noticed a significant change in the last month. She is consistently not completing work, small things are taking 3 weeks to do & her updates are so lacking in detail I almost have nothing to go on.
We also always had warm chats and virtual/in person cuppas. Now it's all shop talk with zero niceties & she sounds very flat. She has stopped coming in to the office. I raised it with my boss and he said they would keep an eye on it
Now at the end of another week, minimal progress has been made again - even though she has been allocated plenty of time. How can I deal with this without making her feel attacked?