Good news that things are working. And thanks also for the additional detail as to the integrity errors, as that sheds more light as to what happened - and that it shouldn't happen again.

There was a problem in an older version of Ledger where after Year End was done, the default year on import budgets/forecasts/net changes templates got corrupted, although the display appeared to show the correct year. DIC and rebuild fixes this error now - as you found - and if you have the latest service pack from May 2015, this scenario should get detected and fixed when the import template is loaded. And as a final check, you can always re-select the year from the default tab, the first time you want to import budgets after closing a fiscal year.

I wasn't sure if you were running into this specific issue so I wanted to cover the simpler scenarios first.