last game (6k vs 4k), the game opened and showed our ranks as 12k and 10k respectively.
game before that my rank showed as 7k before reverting to 6. this first time i was so appalled i failed to notice if my opponents rank also changed 
it doesnāt really bother me, I just thought it was curious.
(oh, sorry, this looks like a dup, but I canāt delete it)
Today OGS is very slow for me. Is it the same for you?
This could be the reason for being able to see something that is always there but usually unseenā¦
Check this topic:
i have seen it several times too. my 5yku opponent shows as a 15kyu. i was shocked for a second: you trashed your rank over night and now trash mine?!
I was behind and eventually lost the game. 
There are many places on OGS where a strange text is presented before the right one.
Did you notice that tournament pages opens up showing different settings? Then, after a glimpse, they change to the actual settings.
Also in first @txwolf image his name is blue, not gold.
I donāt understand the reason for that, but looks to me like a double effort to load weird stuff and then the good one.
Conversely, itās probably a way to save time that I donāt dig. 
My educated guess: If you use the OGS API to retrieve player data, there are many ārankā fields, each with a different value. Some of it are for ratings on different boards and time controls, but there are multiple conflicting generic ārankā attributes as well. Since ogs has been through a rank system change, I can imagine the amount of work needed to remove the old attributes and setup. Thus it probably makes sense to keep the old setup in place and replace the old rank data (fetched from an older code) with the new rank data through another API call.
Broadly, the rationale for this sort of thing happening is to load the page quickly, from locally cached (*) information if possible, then touch it up when the slower to arrive information gets there.
The āgame historyā list on our profile pages is the most obvious example. There is no cached information about that (OGS doesnāt try to remember all that in the browser) so the table is rendered empty to start with, then when eventually the server has compiled the list of your games, it loads them.ā
In the case of rank, it is likely cached. So you are seeing a very old version of what OGS thought the rank was before the server fetches the actual rank.
An obvious quesion is āwhy do I see a wrong rank if Iāve never seen that player beforeā. I donāt know the specific answer, but I can say that caches are wierd
GaJ
*: locally cached: when we see that information the first time in the browser, we save it in the browser, so we donāt have to ask the server again.
Also for informations that we expect that will change often, as rank or tournament settings? That sounds weird. Fast but very inaccurate.
Today I saw (and took a shot of) this one:
9k or 7k?
If you have bad internet like me, they can get stuck.
Personally I like to imagine that server flashes your real rank to remind you what you really worth. It shows a pretty accurate real life rank for me.
youāve made me sad SA. on kgs Iām 4kyu, but really Iām worth 17kyu 
