[Bug] - currency precision issues (JMD display currency)

[islandbitcoin]

1. when i'm using USD as the display currency, this use case works.

• Send $1.00 (Received exactly $1.00)
• Send back $1.00 (Received back exactly $1.00)

2. when i'm using JMD as the display currency, this use case does not work.

• Send JMD$1,000 (Received JMD$998.55)
• Send Back JMD$1,000 (Failed: Amount exceeds your balance of $6.23)

[Nodirbek75]

Here’s what I’m seeing in the logs during testing:

• Created invoice for 100 JMD → 59.397345504118704 USD cents
• Scanned invoice and got invoiceAmount = 59.4 USD cents (~100 JMD in display currency)
• Fetched balance using me query → 59 USD cents

[Nodirbek75]

I think the issue is with the me query — the fetched balance is not returning the precise value

[islandbitcoin]

Issue persists, and being reported by production users. This should increase the priority to high bug.

https://discord.com/channels/1201533062685663345/1260658095886041118/1472610253555240980

[Nodirbek75]

Depends on lnflash/flash#194

[linear]

ENG-108