Career-related. Most of it is low-level stuff, like what I'd be expected to do for my yearly reviews vs. what I wanted to do. I'll mention two stories that just sprang to mind, though there are more.

1 - I was working in a rich .NET environment; JavaScript was beginning to show its teeth and wasn't taken seriously by 'serious' programmers. I was going with my manager through the SMART objectives I needed to do for the year, and I mentioned wanting to learn about this new thing NodeJS and JavaScript on the server side. He kept pushing that I should do a presentation on our use of Entity Framework to get some clout against the Java department. I insisted that I was more interested in learning something new than just doing some presentation that has been done by almost every engineer on our team. He accused me of being an ego-driven engineer and wouldn't accept it. I learned NodeJS that year, did a presentation on it (it was fun, not a single senior thought this was worthwhile), and ultimately ended up using it a lot, and that headstart helped me.

2 - I was talking to the head architect in a large multinational, expressing my interest in joining the 'architect guild.' My manager informed me that I was too young (about 28 then) to consider this career move and that architecture is for older people. I found that to be rather stupid, and when I got offered a CTO role and the possibility to architect a system, I talked to my manager about it, telling him that I was very interested in being in that kind of role and asked if there's any way I could find it inside the company. He told me that 99% of startups failed and that my choice was between employment and ending up on the streets. I took the chance and couldn't help but smile, getting our first million dollars with him in the audience, front row seats paid by the corporation.

Not the OP but it’s not uncommon for a manager to need one of their IC reports to replace them (and therefore go into management themselves) before the senior manager can move up.