In the past, I have been able to create an order then make a partial payment to that order and come back at a later date an make another partial payment to that order. Today, I am no longer able to a partial payment to an existing order that already has a partial payment towards it.
Steps to reproduce:
1. Open the Register app
2. Create an order
3. Click on the "Split Custom Amount" tab
4. Select "Custom" and make a partial payment
5. Click "Pay More Later"
6. Go to the Orders App
7. Select the Partially Paid order you just created
8. Click the Add Payment button
In the past there has been a Split Custom Amount tab
No Split Custom Amount tab is available
I can confirm that the fix is indeed pushed to all environments. It may be required for you to sync your device through App Market (hit that adorable refresh icon in the top corner of the screen), wait for the updates to download and then install.
Please let me know if you continue to see problems related to additional order payments!