[Community Patch]

1 minute ago, Androdion said:

I had the same happen to me on Crysis, so I solved the issue by creating a game profile for it like I explained above. It's simple and easy.

Thanks for the tip, but I don't think we have the same mouse. I'm using a marble Trackman, grey four-button design. The marble is in the center, and there are only two customizable buttons. (Two is all I need.) The mouse can be configured to be used either left or right handed. My SetPoint driver software does not have any "game profile" features, so I'm not even sure what you mean by that. 

I appreciate everyone who's tried to help. The only other game where this issue ever came up before was on GoG Neverwinter Nights, and I never could solve it there, either. 

I might be able to fix it if I could uninstall the game and then also completely clear the registry of the associated Sacred 2 files, but I don't know how to do that. Trying to search for the information just brings up a lot of third party utilities I don't want and that probably wouldn't help anyway. And at this point, even if I could revert to the unmodded Steam version with my clear registry that was working just fine with the mouse without the patch, I'm not sure I want to, because I really like those lightsabers, and I'd miss being able to go to Christmas Island every December.

[Community Patch]

22 hours ago, Flix said:

Can you reprogram the mouse buttons in the game options menu?

No. The game will not accept any customizable button input from the mouse, period. The problem only arose with installation of the patch, and does not affect any other program on my computer.

[Community Patch]

15 hours ago, Androdion said:

That sounds more like a Logitech Gaming Software issue than a patch issue to be honest. Logitech G502 user here.  

You should probably try to update the LGS, or reinstall it if you have the latest version available. Since it runs on top of the games no patch on a game should cause those issues. I even run Nvidia CP with custom settings for Sacred 2 so it goes well with third party software.

The patch is definitely the source of the problem. The mouse worked fine before the patch. Now not even reinstalling the game restores the lost functions. Something was changed in the game registry on my computer that I can't change back. All other games continue to function normally with the mouse. 

This is going to be continually frustrating, because I doubt that whoever wrote the patch knows what they did to cause the problem. Older versions of the patch on other computers didn't disable the mouse button input, but this version does. I expect continued denials that the patch has caused the issue, unfortunately. If I want to play Sacred 2 now, I have to either use the keyboard or click the interface on the screen. Needing to click the interface to drink a potion can be deadly, and it's irritating to pick up loot that way, but it's not impossible. (I play in a recliner, usually with mouse only. Needing to reach for the keyboard or have it in my lap is an annoying inconvenience.)

What would really help is if somebody knows exactly which line has been either removed, left out, or altered in the registry and a way to repair the file, but that's very advanced Windows programming, so I'm not sure if I can try it or not. Meanwhile, I'll have to play the inconvenient way if I want to keep playing. The patch features are very nice - I had a light saber drop last night and now I want to do a build around it. So, that's some consolation. If I had it to do over, I'm not sure if it was worth it, but now it's done, unless I find a way to repair that registry file.

[Community Patch]

If you use programmable mouse functions on a Logitech marble mouse, this patch will disable all input from programmable mouse buttons. Disabling the patch does not return the functions. I am now in the process of having to completely uninstall and reinstall my game, hoping to restore mouse functions. This is very, very bad. I am so upset I feel like crying.