I thought of that and tried to reflect myself but in the end I couldn't decipher their motivation. It was either (1) I solved a big problem they wanted quicker

I thought of that and tried to reflect myself but in the end I couldn't decipher their motivation. It was either (1) I solved a big problem they wanted quicker than they thought and they had no idea what to do with me after, or (2) they lied to me that I did well, concluded I am no good and funneled me to a team where I was managed like an intern. No clue either way but it was not okay to not communicate. It seems they still needed the manpower so they figured they will not say anything at all and hope that I will stay. Well, it didn't work for them. I was happy to leave, lol. And sorry it happened to you as well. The motivations of companies when hiring are still foreign to me and I have to catch up there and learn a lot because I hate being blindsided like that.