This also exists in our online CFM. Multiple users have varying degrees of "active negotiations" without having any active negotiations. I wonder if it's the same teams? For us, we are in offseason 2, and the Raiders are 21/5, the Chiefs are 4/5, the Seahawks are 3/5, and the Browns are 5/5 (at least, not sure, he hasn't responded, but said he can't make any bids).
I did some testing, and it appears unrelated to the "Re-sign" phase and how many players you negotiate with. For example, the Browns didn't try to re-sign anyone during the re-sign phase and the Seahawks only tried to re-sign one guy and he re-signed, so he shouldn't have had any active negotiations from there. I personally have all CPU assistance off, so it's not associated with the CPU making offers on my behalf, either.