I'm having the same problem. Did you ever figure out what was wrong?
When I look at my coin, it shows that the blocks are incrementing and updating. My miner is finding blocks and they are being confirmed but they never "clear". In the pool though (Scrypt pool), the coin's blocks don't seem to be updating. Any help to get this setup correctly would be much appreaciated.
This is a picture of my coin config page.

This is a picture of the pool page.

Hi. I discovered a bug that compromises payments. There are duplicate or underpaid pool payments. You have to correct the values to be paid manually in the database. It's very hard work.
This is probably a flaw in the coin code that is incompatible with yiimp. Those coins that gave problems in my pool I chose to remove them. This is probably a flaw in the coin code that is incompatible with yiimp. Those coins that gave problems in my pool I chose to remove them. Because the problem always came back and can cause distrust in the users of the pool.
Thanks for clarifying this. I also had that problem, spent hours on that bug, and i've never fix it, but i also remove coins that are buggy.
Noted that "blocknotify" don't work on those coins. Erros like this in the screen log: "22241 not reporting" or "blocknotify not found" in the daemon log.