For the last couple patches my camera has been zooming in by itself.

DOTA 2 does its own automatic zooming functions as you move over higher and lower terrains but it wasn't a problem til now. I have camera zoom disabled but even when re-enabling it to address this problem made no difference.

What happens is that the camera zooms in to what would be around 1/2 way manual max zoom. Then it will not zoom out again until I move the camera somewhere else where the automatic zoom would be at max, as it should be, with camera zoom disabled. Sometimes this takes up to 10 seconds of moving around the map until it finally zooms itself back out. Re-enabling zoom and trying to zoom out manually does nothing.

This has been happening for the last few patches now.