This was previously resolved, (https://bitbucket.org/bbucklew/cavesofqud-public-issue-tracker/issues/13001/reputation-sorting-reverts-when-pressing), but seems to be happening again on 1.0.4.

Reproduction steps are the same as the linked issue, and are as follows:
1. Go to the reputation screen and set sorting to lowest/highest reputation.
2. Use Numpad 4/6 or the Arrow keys to expand/contract a category.
The sorting then reverts back to alphabetical upon doing so.

Using space, enter, or keypad enter to expand/contract them doesn't do so, and keeps the sorting as intended.