Not sure it is a real bug, but maybe unintended behavior.
In map view when you activate show worker robots, the game has to render these small squares for all the robots flying around,
which has quite some impact on UPS.
When you zoom into the map and get to the normal surface view, these squares are no longer visible, but they seem to be computed anyway,
the render preparation time increases when toggling the option.
[1.1.8] Map view - show worker robots - bots get rendered even when zoomed in
Re: [1.1.8] Map view - show worker robots - bots get rendered even when zoomed in
Thanks for the report however that's intended; if you are at the edge of the radar view the normal map still renders and will show all of the options you have enabled.
If you want to get ahold of me I'm almost always on Discord.