add known issue

Author: BrandtH22

docs/cloud-wallet/known-issues.md

@@ -21,6 +21,7 @@ Feel free to report other issues on [our Discord server](https://discord.gg/chia
 - We have experienced issues with other combinations of OS and passkey type, especially on mobile devices. These issues are typically related to the device itself, and are out of our control to fix. However, we will work on reporting these limitations more clearly when they occur.
 - If you rename any tokens in your vault, and then create an Offer that involves those tokens, the old names will be displayed in the Offer. We will show the new names soon.
 - The cloud wallet is currently the only wallet that supports vault based offers. This means if you create an offer in the cloud wallet the taker will need to accept the offer in their cloud wallet account.
+- In some circumstances such as receiving a payout from a pool, the transaction list does not properly update and show the transactions. Generally the balance is updated properly but in rare cases it is not. We are resolving these issues to ensure the balance and transaction list is properly updated. The funds are still in the wallet even when these are not shown.
 
 ## Resolved Previously Known Issues