[Android] Unable to perform contribution

[srirambv]

Description

Unable to perform contribution

Steps to reproduce

1. Enable rewards
2. Try performing contribution
3. Doesn't go through

Actual result

2021-08-14 05:03:58.102 12243-12243/? V/chromium: [VERBOSE1:confirmations.cc(248)] Successfully redeemed unblinded token with confirmation id b25585f5-44cd-44a9-b096-f745602213ab, creative instance id ed6c467a-8643-42eb-a7cd-32e878fa3cd4 and view
2021-08-14 05:03:58.105 12243-12243/? V/chromium: [VERBOSE1:confirmations.cc(271)] Added 1 unblinded payment token with an estimated redemption value of 0.025 BAT, you now have 1 unblinded payment tokens
2021-08-14 05:03:58.107 12243-12243/? V/chromium: [VERBOSE1:refill_unblinded_tokens.cc(66)] No need to refill unblinded tokens as we already have 49 unblinded tokens which is above the minimum threshold of 20
2021-08-14 05:03:58.525 12243-12243/? V/chromium: [VERBOSE1:contribution.cc(744)] Retrying contribution (a208311b-91e2-407f-a6a1-49aba3dfb89c) on step STEP_PREPARE
2021-08-14 05:03:58.526 12243-12243/? V/chromium: [VERBOSE1:contribution_unblinded.cc(185)] Token list is empty
2021-08-14 05:03:58.533 12243-12243/? I/chromium: [INFO:credentials_promotion.cc(455)] Token list empty
2021-08-14 05:03:58.536 12243-12243/? I/chromium: [INFO:contribution_unblinded.cc(503)] Tokens were not processed correctly

Expected result

Contribution should go through

Issue reproduces how often

Easy

Version/Channel Information:

• Can you reproduce this issue with the current Play Store version? NA
• Can you reproduce this issue with the current Play Store Beta version? Yes
• Can you reproduce this issue with the current Play Store Nightly version? Yes

Device details

• Install type (ARM, x86): ARM
• Device type (Phone, Tablet, Phablet): Phone
• Android version: 10

Brave version

Website problems only

• Does the issue resolve itself when disabling Brave Shields? NA
• Does the issue resolve itself when disabling Brave Rewards?NA
• Is the issue reproducible on the latest version of Chrome? NA

Additional information

[srirambv]

This seems to be an intermittent issue on the current release build as well. @GeetaSarvadnya was also able to reproduce the issue with and without one-time/recurring tips. Moving the issue out of the milestone as this will require some investigation before landing a fix for it

cc: @kjozwiak @deeppandya @zenparsing @tmancey

[kjozwiak]

@anthonypkeane @bsclifton we should probably get someone to take a look at this and see if they can reproduce and see why AC isn't as reliable on Android and fails from time to time.

[deeppandya]

@kjozwiak I think we would need someone to look at it from backend side. I looked into the issue but we haven't updated rewards in Android side at all so it may be something from backend. I would be happy to jump on it.
CC @zenparsing

[srirambv]

Ran into this while testing 1.29.80 build

[GeetaSarvadnya]

Ran into this issue while upgrading 1.29.79 to 1.29.80 on Android Tab ( issue occurred in 1.29.79)

[stephendonner]

Verification PASSED using Brave 1.48.149, Chromium 109.0.5414.119 on a Google Pixel XL (arm64) running Android 9

Unverified - PASSED

1. installed 1.47.161
2. tapped through onboarding
3. set Rewards to staging via QA Preferences menu
4. relaunched
5. tapped on the BAT icon in the URL bar
6. tapped Start using Brave Rewards
7. selected United States and tapped Continue
8. tapped SKIP
9. tapped DONE
10. tapped on the BAT icon again
11. confirmed and accepted the free token grant
12. installed 1.48.149 atop 1.47.161 (both are beta-channel builds)
13. loaded laurenwags.github.io
14. set monthly tip to 1.00
15. shut down Brave
16. fast-forwarded system clock to next-month contribute day +1
17. relaunched Brave
18. waited
19. confirmed monthly contribution was processed

example	example	example	example	example	example

Uphold - PASSED

1. installed 1.47.161
2. tapped through onboarding
3. set Rewards to staging via QA Preferences menu
4. relaunched
5. tapped on the BAT icon in the URL bar
6. tapped Start using Brave Rewards
7. selected United States and tapped Continue
8. tapped SKIP
9. tapped DONE
10. logged tapped Connect
11. tapped Uphold
12. logged into Uphold staging
13. confirmed and accepted the free token grant
14. installed 1.48.149 atop 1.47.161 (both are beta-channel builds)
15. loaded laurenwags.github.io
16. set monthly tip to 1.00
17. shut down Brave
18. fast-forwarded system clock to next-month contribute day +1
19. relaunched Brave
20. waited
21. confirmed monthly contribution was processed

(missing initial-balance screenshot)	example	example	example	example
missing, sorry!

@srirambv of course, should you encounter this again, please do file a new issue, thanks!