Good to know.
So it will do it every time you recreate the overload.
So think about your devices…
You bought this
https://www.amazon.com/Charger-Anker-Adapter-PowerPort-MacBook/dp/B07ZCGYP27
Which has these maximums
The iPad is probably the primary culprit, does anyone know the maximum it can draw? I’m seeing mention it has been measured taking 15W?
The Slim III says "USB-A Port: 5V ⎓ 4A(2.4A Max Per Port) "
So what may be happening is the iPad was takine 2.4x5 = 12W leaving 8W budget remaining, then your other devices took more than 8W and so self-protect kicked in.
Can’t the iPad connect to the USB-C 45W at all? 45W is a lot more than 20W so less of a risk, but would it tecnhically work?
I’m afraid I seek out leading technology, so don’t how anything Apple
Also, if this is your situation, you bought this to connect these devices, then it’s likely the wrong product so consider keeping all the packaging safely neat and be ready for a swift return and refund as may be bad fit. This is no criticism of Anker, their good support and returns is one of the reasons we buy them and recommend them as it’s a zoo of products and device combinations.
Someone else would help us out who knows the iPad 7th gen, what is the maximum and support.