why doesn't my rank go up?

I have played several competitive games and my rank percentage does not go up, I am in platinum 5 and it does not go up any more
is it some bug?

> 2535410267276805;1:
> I have played several competitive games and my rank percentage does not go up, I am in platinum 5 and it does not go up any more
> is it some bug?

I had the same issue i was at Diamond 3 and was stuck there for almost 2 weeks and suddenly it went up dont know what happend

I’ve never had that issue, there was times Id win against a lower ranked opponent which will give me a very small increase 3-4%.