Player A is newly added to the database. Value 360k
Within 18-24hrs (usually from midnight onwards) his value will jump to, as an example, 1.4mil
Meaning if you've bid on this player when added, your initial bid is no longer enough and you must bid again. You bid again and by then others in the world could have twigged he's been added and you have competition. Whereas if the players value didn't meteorically rise to begin with, the bid would already be accepted.
And that's not even taking into account that when people are wise to this scenario, and there's competition for a newly added player on the first day he's added, people can log on in the middle of the night and put in a new bid when his value changes. This means that when you log in the following morning the bids could very likely be accepted and your bid will have been blown out the water by the person who logged on from midnight onwards.
This players value issue has been going on for a long long time. You can still bid more randomly on players when using the new UI instead of the old UI aswell