Are there other situations where my LPA or the Donee's powers will be cancelled?

Apart from your revocation (termination) of your LPA, the LPA may be cancelled or the appointment of the Donee will be terminated in the following circumstances:
You or your Donee dies
Your Donee lacks mental capacity to act as a Donee
Your Donee formally declines the appointment as a Donee
There is a divorce between you and your Donee, applicable if your Donee is your spouse and you have not stated in your LPA that the divorce will not terminate the LPA
You or your Donee becomes a bankrupt or if your Donee is a licensed trust company, the company is liquidated, wound up, dissolved or under judicial management (Note: this applies to property & affairs Donee only)
A Court Order is made to cancel the LPA or your Donee's powers – this can happen if your Donee has not acted in your best interest