when the scrollbar appears in explore the whole explore map is displaced wich makes the sprite move out of position....couldnt this be solved by absolute possitioning or with centering the div island_map to center on the screen and have the div island_log be relative to the map? unless the css is with flex it shouldn't take too long to fix if that's what causes it. 
this bug/event happens every time the scroll bar appears.... though it havent broken the page yet so I giess it's not very urgent

forgot to say, the sprite returns to a correct position when it moves again

Yes, it's possible to fix this. We'll add this fix as a part of an update planned for the end of the month. Thank you for reporting!