MB4 and MB5 support gone?

Neither button is being recognized in-game or when setting controls on that interface. Previously worked just fine. Type mouse: Logitech M705 (RF)

mine seems to work just fine.. check your hot keys in case the new mounts have over written your settings

That was the first thing I checked. Like I stated, setting controls (hotkeys) doesn't work. I went to the hotkey settings for Auto-run (MB4) and "Stop Auto-attack" (MB5) to reset them and found the interface wouldn't even recognize the MB4and MB5 button presses.

Go Google around for this issue on Windows as a whole. This is not a GW2 thing, it's been hitting a lot of us off and on since the W10 creator's update, it's Microsoft's screw up. For some reason it randomly changes gaming mice with more buttons, to register as a 3 button to DirectX and then the games can't see them. Sometimes a reboot fixes it, sometimes not, I have found if you have multiple mouse drivers installed for other things that removal of some extraneous ones does tend to drive the chance of it happening down though. I wish MS would actually acknowledge the issue and take it seriously. A dev on Warframe actually broke the real news on DX not getting the proper information, he made a small app to check directx's input and show how many buttons your mouse is detecting as, and it works 100% of the time. Any time I've tried it when the mouse is working it shows with more buttons, any time it's glitched it only shows 3. Hopefully the fall W10 update will fix this but I rarely trust MS to get their crap together.

Have you tried unplugging it and plugging it back in ?

/protechsupport

Do Logitech mice have a "hardware mode"? It makes the OS think the command is an actual keyboard press without going through the included software. I use that on my Corsair because their software is not the most well behaved.

Worked fine before; after GW2 patch it stopped working.

Still works fine with ALL other applications, to include other games that use DirectX.

Worked fine before; after GW2 patch it stopped working.

I'm not on Win10.

Worked fine before; after GW2 patch it stopped working.

It's wireless, not plugged in.

Worked fine before; after GW2 patch it stopped working.

Conclusion: Problem was caused by the patch.

@Lord Kreegan.8123 said:

1. Worked fine before; after GW2 patch it stopped working.
2. Still works fine with ALL other applications, to include other games that use DirectX.
3. Worked fine before; after GW2 patch it stopped working.
4. I'm not on Win10.
5. Worked fine before; after GW2 patch it stopped working.
6. It's wireless, not plugged in.
7. Worked fine before; after GW2 patch it stopped working.Conclusion: Problem was caused by the patch.

did you try reinstalling the game?

No, of course not. Given that ANet almost daily overwrites major portions of code in its updates, it wouldn't make sense to do that. I'm not going to spend hours reinstalling just to find the same bug still exists; they need to find their bug, correct it, and stick the new code in one of their daily updates.