Another stumbling block surfaced Tuesday in the talks to move forward with plans for a downtown baseball stadium. There are new twists in the dialogue between the city and the Metropolitan Entertainment and Convention Authority.

A committee recommended building a new baseball stadium on Qwest Center parking lots C and E. MECA board members were initially against the idea, but MECA and the city agreed to try to iron out their differences over the proposal without the threat of litigation.

The board thought it was close to an agreement on a list of requirements with the city, until the city handed members a big surprise Tuesday morning.

"I wouldn't describe it less as a left turn and more as a U-turn on the city's part," says MECA’s David Kramer, describing what the city did concerning the list of requirements dealing with the stadium issue.

"I don't understand the fact that they sent us a complete redraft today that added numerous things that have never even been on the table before that simply don't work in our perspective and remove some things that had already been agreed to," says MECA chairman David Sokol.

That list deals with things like stadium parking, traffic flow, cost and management, although MECA won't divulge the exact details.

The board met Tuesday and had expected to approve the first phase, but members say this new list of considerations puts the brakes on any vote.

Now MECA is left a little puzzled by it all.

"It is unanimous that the board wants to be helpful and wants to move forward, but we need to be able to rely upon information that is being given to us and on agreements that we thought had been made up until this morning," says MECA’s Hal Daub.

"I just had a chance to look at it quickly and the changes were significant, substantial and unexpected."

The mayor's office says there should have been no surprises for MECA board members. The mayor issued a statement saying, "We provided MECA with all the information requested. There has been considerable give and take and their concerns relating to traffic flow, parking and stadium finances have been addressed."

What seems now like a disagreement over a disagreement with MECA saying it just wants the list back to the original agreements. "Tell them look, we think these things work, if you want to go forward fine, if not we'd understand if you want to use a different site," says Sokol.

Something else MECA members are concerned about is time. Omaha has until April 30th to show the NCAA that the new stadium deal will work. That's just over four weeks to work out what MECA calls "a lot" of details.

Sokol tells Channel 6 News they will send the original draft back to the city Wednesday morning, saying that's the requirements they need the city to meet.