There are huge regional differences in what is okay and what isn't in changing jobs. I some European countries you're considered a job hopper if you change jobs

There are huge regional differences in what is okay and what isn't in changing jobs. I some European countries you're considered a job hopper if you change jobs every 2 years. (Industry matters too, for instance the gaming industry is very dynamic anf it's not odd to jump around their, while at financial services it is). Bottom line; everyone can get away with a unfortunate career move. As long as you can explain why you took the job (whay you expected) and why that didn't work out. But if this happens more often, future empoyers will suspect there's something 'wrong' with you if you can't seem too be happy and productive in a place for a longer time.