It looks like it was fixed in a previous update, but the bug has now resurfaced. Link to previous reporting of bug https://ludeon.com/forums/index.php?topic=45861.0
Here's some screenshots of I think 18 hives spawning on a river. Note this is with no mods, and is vanilla savage randy commitment mode.
Here's some screenshots of I think 18 hives spawning on a river. Note this is with no mods, and is vanilla savage randy commitment mode.