Hi praveens007,
This sounds really weird.
However, can you check in below areas just to confirm that everything is set fine there.
1) Go to Books form and check whether calculate depreciation and post to general ledger check boxes are set to 'Yes' or not in each Books.

--- Then click on Fixed asset groups tab as available in this form and check if calculate depreciation check box is set to 'Yes' or not. Also, check if all other details are set as per these two screen shots in these areas.
You have to check this in all 'Books' and corresponding 'Fixed asset groups'.

2) Similarly; go to Fixed asset groups form and then click on Books tab as available in this form. And check if calculate depreciation check box is set to 'Yes' or not.
You have to check this in all 'Fixed asset groups' and corresponding 'Books'.

An wilder guess !!!
>>> Can you also check and confirm that due to version upgrade; the number sequence code is not showing Blank or somehow it is not removed from Fixed asset groups form which you can see in below screen shot. You have to check this in each fixed asset groups.
>>> Also check if Autonumber fixed assets are set to 'Yes'.
>>> All Fixed asset groups are having Book code linked.
>>> All Books are having Fixed asset group code linked.

>>> Similarly; check in FA posting profile for any changes and if all main accounts are still available there or showing blank or not (somehow due to version upgrade) !!!
>>> Can you delete the journal batch number itself and then create a new one and try with depreciation proposal if it works !!
>>> Is there balances available for assets for which you are running depreciation proposal ?
Kindly check and update us.
Best regards,
Sourav Dam
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