In T58490#565099, @Alaska (Alaska) wrote:

I think the developers designed it this way so you can still navigate around your scene even with a tool is active. The top bar should be used for adjusting the number of cuts:

As you can see, in the manual-doc it is mentioned as it was in 2.79. Why and how should i navigate while cutting and object? OK, this can be an extra option for very special situations...But i think, the old wheel method is much better and simplier then now...Also, the doc should be updated?
Blender 2.8 Manual

i see now, the bug is even easier to reproduce, without moving the vertex:

hello Ignatz, that could be, i use to test releases of blender that way, with simple steps, it could be that also other releases have the bug.

alt+F10, then alt+F11, yes the icon <-> appears. I also installed it on my laptop, it works there as expected, so no crash. probably i have to install my windows again, anyway i wanted to update to windows 10 next month, so i think that this could be an issue. i experimented with "take ownership" few weeks ago, so now i have some issue on updating and user account. but i think, in this case, that has nothing to do with it. it seems strange, that nobody else reported this issue, so that must be something wrong with my computer.

ok..., when i press N, it works, so no (mouse)crash after i press N. I have a Logitech Wireless Mouse (2Buttons+Wheel).
It still jumps opening the properties panel again with the mouse, in 2.74 it was a smooth opening.

if i go into edit-mode and move a vertex first, then i can open the transform/properties panel and everything seemed to work normal. now i have it again also in this case.... very strange, it is anyway a bug from blender. i installed v.2.74 and everything works fine again.

and the system-info:

Ok, sorry, i have ASUS Nvidia Geforce 660 TI OC 3GB /GK104 - normal mode. Everything work nice with Blender 2.74, so i had no such issues until now.

anyway i reccomend you to use the bevel as a modifier+weight, so you can control, which part/vertex or edge should be beveled and how much. i never use the standard bevel option and actually its unnecessary.

hallo, i use the latest build blender-2.70-8f1a6e2-win64 and i get this workout. i use angle and depth. i hope, you meant the bevel modifier.

i confirm the same issue.

i reported also this issue and received this message: