A marketing/PR manager below me has one employee (let's call him John) that has been constantly unreliable. They agree on something, let's say "John, post this on instagram today" and he flat out doesn't.
They have an arranged schedule of posts, and he simply doesn't post anything. On other occassions, John seems super hyped and interested in the project, even so that he proactively comes up with new ideas and improves existing processes. This comes in stages and it feels very "bipolar". We are working remotely, so maybe this unrealiability goes with the fact that you don't "sit your time out" in the office and work.
HR interviews show that nothing is off, when I personnaly spoke to him, he seemed very invested in the project and one time even called me to tell me about his new ideas he had and future plans for the project.
To top it off, he logs twice the time as other employees in the same team. When confronted with this, he simply says that the work really takes him this long.
What would you do in the same situation? I feel like something's weird here, but can't put my finger on it.