Loan Asset Type pool issues

[Orangemaple23]

Hi @yellowbean!

Thank you for adding in Loan asset types into Absbox!

I've noticed an issue when modelling loan assets in a pool and then when buying the revolving assets.

The pool flows show that the balance goes negative and then get's increasingly bigger as the model runs through the dates. The collections received aren't indicative of the negative pool balance so I believe it might be a bug, I have attached a jupyter notebook showing the issue.
Loan_asset_type_negative_pool.zip

Thanks in advance!

[yellowbean]

I think I pin point the issue, will look into it now

[yellowbean]

Thanks ! @Orangemaple23

If you can connect to server with version : 0.27.21, the issue shall be gone.

root cause

when projection revolving cashflow it should rebuild begin balance ( sum up all revolving asset beg balance )

The old logic is using begin balance of asset 1 and amortize the balance with principal / prepayment/ defaults balance from asset 1 ~ asset 6, which over amortized then cause the big negative.

[Orangemaple23]

Thank you!