Confusion about group bidding- need clarification

[Thomascostlow]

I recently read through some forums on group bidding, thinking I had a good grasp of how it worked based on the questions and answers I found. However, it seems I may have misunderstood. I added three identical items to group 1, all ending simultaneously. I placed a bid on them, but when they ended, someone else placed a higher bid on one, canceling it out. The other two items continued bidding and I won both. My understanding, from previous forum posts, was that if I placed items ending at the same time in the same group, winning one would cancel out the others. I recall a post from the early 2010s suggesting a 2-minute gap, but I also saw a more recent update stating this was no longer the case for Gixen, and items could cancel each other out even within seconds. I realize I may not fully grasp how group bidding on items ending simultaneously works. Could someone please provide a more detailed explanation of how this process works, or if there's a better approach to achieve the desired result?

[Cupid]

Yes, your issue will be down to the auctions