The **Composable Finance** team has had [the same issue](https://kusama.polkassembly.io/motion/427) essentially as on Picasso chain on Kusama, so one particular cause: The team had a stray [todo!](https://github.com/ComposableFi/composable/blob/094d4668400c7832ccd601863a175eeb931782e3/runtime/picasso/src/weights/democracy.rs?_pjax=%23js-repo-pjax-container%2C%20div%5Bitemtype%3D%22http%3A%2F%2Fschema.org%2FSoftwareSourceCode%22%5D%20main%2C%20%5Bdata-pjax-container%5D#L117) in the weight calculations for pallet-democracy [which doomed the chain to be bricked once the launch period elapses](https://github.com/paritytech/substrate/blob/542a8585339d2581e641df339d254d7dd22b1456/frame/democracy/src/lib.rs?_pjax=%23js-repo-pjax-container%2C%20div%5Bitemtype%3D%22http%3A%2F%2Fschema.org%2FSoftwareSourceCode%22%5D%20main%2C%20%5Bdata-pjax-container%5D#L1758-L1763).

- Public wasm file to use can be found here: [https://github.com/ComposableFi/composable/releases/tag/v2.1.2](https://github.com/ComposableFi/composable/releases/tag/v2.1.2)

- Preimage design:

![](https://i.ibb.co/sjtNZqF/Screenshot-2022-03-28-at-09-53-06.png)

- Preimage hash: `0xad2813b46b52fe8f38cb5af7da9c7f0f66416900070b949daa62cf92bbdc6fd7`


- The Composable Finance team had a problem with their software on the Picasso chain.
- They found out that there was a mistake in the weight calculations for a certain part of their software.
- This mistake caused the chain to stop working after a certain period of time.
- They have released a new version of their software for people to use.
- They also have a design and a code for something called a preimage hash.

#961 Help Composable Finance Unbrick Their Chain