I (finally) managed to finish the All Heroes mode on Legendary with 26,475 points (one of my friends also showed me a screenshot of his perfect 30,000 score) and my friendlist ranking still shows my first high score, which is 18,716. I think the server T500 is also glitched, showing 21,870 points from #1 to #500 when there’s already many people who have already scored +25,000 (as I seen on videos and pictures.
Needs to be fixed. Worked really hard to finish this mode (too bad our Zenny died and we couldn’t get achievement), and many people tried very hard to get their scores.
Thanks in advance 
Here’s my score screenshot:
https:// imgur. com/a/3s8PKak
P.S.: Meanwhile, Uprising and Retribution ranks have been getting updated. The problem is only for Storm Rising!