Thank you so much for such an incredibly nice and detailed feedback! Hearing that "half an hour disappeared without noticing" is the absolute best compliment a solo developer can get during a game jam! It means the world to me.
Regarding the controls: you are completely right. The Left-click to select and Right-click to place was a rushed workaround in the final hours, and I totally see how confusing it is, especially with the description discrepancy. I will definitely overhaul the control scheme and UX in the post-jam version.
As for the halt at 01:28: thank you so much for the screenshot! It is super helpful. It looks like a logic loop or an accidental pause state bug halted the timer and spawn progression. I'll dive into the Blueprints to debug this ASAP!
I noticed you also have a game submitted to this jam! I am definitely going to play, rate, and leave detailed feedback on your project tomorrow morning (guaranteed!). I can't wait to check it out!
(P.S. To anyone else reading this: I always play, rate, and leave honest feedback on every game that rates mine. Feel free to leave a link to your project in the comments, and I'll play it!)