X-Mouse Button Control (Media - Play/Stop) not working

[har2h]

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XMBC Version: v2.19.2
Installed or Portable version:nah
Windows Version: 10
Mouse Information (brand/model): Zowie FK1+
Relevant Computer Information (CPU, RAM etc): i5-3750k
Did the problem occur after an upgrade of XMBC? (If so, from what version?): no
Did the problem occur after a Windows update/upgrade? (If so, from what version?): no
How long have you used XMBC?: 3 years
What language and keyboard layout do you use in Windows?: polish

Clear description of the problem - try and include as much information as possible, including what button and mappings you are having problems with (if applicable).:Hey, I've been using this software for years now, and now somehow my combination of mouse button 4 and middle button (pushing the scroll until clicks) doesn't do anything. I've tried to assign Media-Play/Stop to just middle button but it doesn't do anything. Can you help me? and yes middle button works

[phil]

I'm away on vacation right now - remind me next week and I will try and help.
What has changed since it last worked I wonder?