Had the same experience earlier this week. I didn't think too much of it since I don't remember being able to see a counter-offer under construction before. Once the trade partner completed their work, the offer was available to view again.
The one downside was not being able to see any of the messages shared on the trade. I had received an alert that the partner send a message on the transaction, but there was no option to view the transaction. It's odd, but my week has been odd for technology anyway.
Collecting White Sox, Royals, and 1978 Topps Baseball. Trying to build a multi-sport HOF frankenset.
Done is better than perfect.