When transferring money from a saving pot to the main account, you can’t change the expense category until the transaction has cleared. This can be a few days where the saving spot is held with another bank.
Why this would be helpful? Using the trends feature, any transaction moving from a pot to the main account can offset an expense when categorised correctly. However, not being able to categories a pending transaction would mean The expense has not been offset. You need to wait until the transaction clears, then update the expense category, then go back to the trans page to see that the expense has net to 0