See discussion https://moodle.org/mod/forum/discuss.php?d=387512
In Telugu language, the alphabet in the glossary activity are not links per letter, but one link for all the letters of the Telugu alphabet.
There might be a secondary problem with the sorting of words in Telugu, but that can't be tested at the moment, since the links are not working.
How to reproduce:
- Create a glossary and switch language to Telugu.
- You can add a few entries, like the following letters: క కా కి - they are all variants of క and should sort under that letter if the links work.
- Try to click on a letter in the alphabet. You will notice that the links are not separate per letter as it should be, but one big link, which apparently doesn't do anything