chrome, PC. it hasn't done it for a few days so maybe it was something at my end or whatever, idk! i'll let you know if it reoccurs. it was a mild inconvenience rather than a big problem, manually refreshing stopped it happening. it didn't seem to be fully refreshing, like it wasn't reloading the entire page, but it kept continually scrolling up and down and the cursor had the loading symbol etc. seemed stuck in a loop of some kind.