Hello,
I have tried to create a dispute on the sandbox following the instructions on this documentation
I have created a payment with many of the amounts referenced there but when I try to get the disputes I always get an empty object as if no disputes were ever created, is that an issue with the sandbox or I did something wrong?
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Based on the information you’ve provided, the following documentation will help answer your question:
Additional Documentation
Process Disputes
Test in the Sandbox
Sandbox Payments
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Was it with a card payment? If so what’s your application ID? 
Yes it was a card payment and here is the application Id
sandbox-sq0idb-LCev1xn-xJyzBOEKSf9fEA
What was the payment_id you expected to see the dispute on? 
I have tried many times so you can try these ones
9QfRnYcL1NvGNcZR3ufKTrxF9lNZY
nV1Mts8meCugsFRcQ2lJSDdQYs9YY
f1bMWlrVTFY7n8QeTimm1WpXmfZZY
fTULL5JhhtG2tjcwwCx4rn5VDi7YY
Thanks for the examples. I’ve reached out to the team. 
Thank you, I will be waiting for your reply when they are done investigating.
Hello,
I was checking if there is any updates?
The team has pushed an update that’s fixed this issue and disputes in sandbox are working as expected now. 