AX 2012 - Duplicate Project Invoice journal

[nglehang]

Dear all,
Does anybody know why does sometime system create many Project Invoice journals from one Invoice proposal? As screen short bellow:

Invoice	Invoice account	Invoice date	Project contract ID	Voucher	Invoice type	Invoice proposal	Sales currency	Invoice amount
	C000713	12/31/2014	SS2074A14		Invoice	PJP-005530	VND	3,318,750,000.00
	C000713	12/31/2014	SS2074A14		Invoice	PJP-005530	VND	3,318,750,000.00
PJI-005076	C000713	12/31/2014	SS2074A14	PJI-005076	Invoice	PJP-005530	VND	3,318,750,000.00

I do as following step:

1. Open Project and create new “On-account transaction”

2. Open “Invoice journals” and create new Invoice journal for this “On-account transaction”

3. Submit above “Invoice journal”

4. Approve this “Invoice journal”

5. Post this Invoice journal

6. Open Project Invoice journal to check and found that there are existing 3 lines (sometime 2 lines, sometime 3 lines) with the same Invoice proposal ID.
   But there are only one line have “Invoice number” and “Voucher number” , other lines don’t have these information.

Following is the incorrect Project Invoice journal:

Invoice	Invoice account	Invoice date	Project contract ID	Voucher	Invoice type	Invoice proposal	Sales currency	Invoice amount
	C000713	12/31/2014	SS2074A14		Invoice	PJP-005530	VND	3,318,750,000.00
	C000713	12/31/2014	SS2074A14		Invoice	PJP-005530	VND	3,318,750,000.00
PJI-005076	C000713	12/31/2014	SS2074A14	PJI-005076	Invoice	PJP-005530	VND	3,318,750,000.00

Does anyone here know how to fix this issue?

How can I remove the duplicate lines, the line that don’t have Invoice number and Voucher number?

Please share with me

Thank you in advance.

[nglehang]

Sorry, the screen abow does not display full information"

I re-upload screen short as bellow:

https://flic.kr/p/w4SMGj

[nglehang]