This happened to me as well, but in SV and Twinbrook. So I sent my Sim to learn athletic at the coliseum. It said he gained a skill, but when I looked in the skill journal it still said he hadn't learned any skills at all. I assumed this meant the 'hood was about to implode, so I just deleted it and started over. Both times this happened with a brand spanking new 'hood, and only store content for CC. To make sure that my new 'hoods weren't borked as well, the very first thing I did was click on one of the workout machines at the gym. If the option comes up to either work out until fatigued or work out until skill gained, then you know it isn't mangled. If it is mangled, the only option that comes up is "work out until fatigued". I did not test with ASM so I have no idea whether resetworld or fixall work to fix it, or whether your 'hood is rendered a BFBVFS.