Mouse thumb input no longer registering

[Oates_]

My Razer Deathadder 2013 has two thumb inputs, labeled mouse5 and mouse4. I normally use these inputs for my melee. Within the past week/few days, these inputs have ceased to register within Warframe. This not only applies to usage in mission, but also when I go to bind them in the options menu.

I have tested the mouse on other applications and it appears to be functioning nominally. I recently updated the razer software, and therefore I think it might be a communication issue between the programs. I have not tested rebinding the thumb buttons to unused keyboard inputs as a workaround yet, although I think that is likely to work given what I have seen. EDIT: I have tested rebinding quick melee to default and binding mouse5 to 'e', and it does indeed function normally.

It seems oddly specific, no other controls are acting strangely.

Thank you for your time.

Edited July 31, 2017 by Oates_