One of my older leases has disappeared from the transactions tab, so I'm unable to cancel it.
As your lease remains in your wallet, I do not understand where it did possibly go. Weren't you credited back the waves? See if your balance has changed.
The ticket system in the blog works pretty well and the team replies pretty quickly. Good luck with it. Please share the outcome.
The balance is still leased out, only the transaction has disappeared from the lease tab. As you need to press the cancel button next to the lease to cancel it, I'm not able to do that.
I'm not scared I lost my coins, just want to have the flexibility to move them when I consider the time right.