Players who are seeing their yesterday’s results screen display incorrectly is a visual issue.
The results shown on the overview menu is the correct value.
All your bonuses, Guild and individual rewards are being received correctly. At reset tonight, you will then receive the correct rewards for todays war.
Keeping also in mind, some players don’t complete their battles till close to daily reset, so scores can also still be coming through. Also, depending how often you are checking your GW overview menu.
So again, players who have seen yesterday’s results screen display incorrectly, and then check back and it is a different Guild and a loss/win.. this is visual only.
Of the Guilds and players so far I have looked into, currently have not found someone who is missing a reward for their valid win. Their data is showing the win, despite it not displaying in-game.