Views Grouped Filter weight randomizes when # of filters exceed 10

Problem/Motivation

I have created a view that has exposed filter which allows the user to sort through content titles via the Alphabetical options (A, B, C, etc...). To attain this functionality, I used Group Filters to create values for each letter. The filter works as required, but the issue is the weight of each Letter keeps scrambling after I save the content. Therefore, when a user selects the filter's dropdown, options appear randomized (F, J, P... - instead of - A,B,C...).

I believe this has something to do with the limited amount of weight available (-10 to 10), as the letters started randomizing after the weight reaches 10. The following filters would then start using -10 as the value. Would there any option or patch available that would allow for increasing the amount of weight available?

Thanks!