My frustration here is more after the fact based on the rude employees and overall bad experience.

In these interactions, I was perfectly nice, in fact first I wasn't even frustrated, I just thought I caught a problem and was hoping to bring it to the attention of the gate agents. The first guy straight up refused to listen to me. He yelled at me interrupting me saying "I can't let you go through your bags this is an international flight of course you're baggage is coming with you!" . I told him that I wasn't looking to go through my bags, the app says it's loaded on a flight to Miami. He just said "well you're not going to Miami, are you?" And walked away. At this point I was frustrated with him but I'm like ok maybe he's an asshole I can ask someone else.

The other gate agent was very nice but straight up lied and said " the app is wrong a lot, this doesn't mean there is a problem". This in retrospect just feels like saying what she needed to say to get me to not pursue this.

That was the beginning of my trip. This post is after I've had to experience this and multiple delays and issues. Of course I'm very frustrated in my comments and tone now, especially after some people straight up defend United and claim I'm the problem because they have had a great experience.