This is the third time Spore Hunter just gets stuck playing the music, reloading just sends me to the fourth game, meaning I can't play spore hunter and beating the fourth game again just leads to a exit button. This has happened to me three of the five times I tried to play the game, while yes the other two weeks I was able to play the game and get the points.
I've had problems on Mobile, and using Desktop Chrome (with and without extensions enabled, and even in a private browser), but using a regular window in Brave browser seems to work. The flow of the fourth and fifth weekly mini-game is definitely very finicky, and prone to failure, so I've only been able to complete the Spore Hunter part 3 weeks of all the weeks it's been available, and only with my non-usual Brave desktop browser.
All of the games seem to work really well for me on a PC using Firefox. I had trouble with Spore Hunter one time. I was over 5K, and I'm pretty sure I accidentally clicked exit, instead of the 'claim' button. I tried to get back in but got ZERO score, and "Thanks for playing."
All was good for me, then at the end, when you get to claim the last reward, I pressed it and got some weird popup asking for...email and username? Can not remember...I was like ???, did not touch that, reloaded and it said completed. All ARP awarded, by the ARP log.
Went to different pc and changed my password, just for funsies. Glad it is not weird just for me.
I have similar problems as well trying to do the 4th day quests on mobile. It never loads properly on my main browser (Kiwi/Chromium) but I've found that it loads perfectly on Firefox mobile for the 4th quest and Spore challenge.
That said be mindful of accidentally refreshing the page at any point, twice I've unintentionally triggered the pull to refresh gesture before playing the Spore game and it won't let me play at all after that, just repeating the 4th game over and over.