I'm not going into full detail, I think the pictures should speak for themselves. but here's the (minor) issue i encountered.
Scirra arcade suggests posting on reddit, However, i encountered a problem when posting on this particular subreddit: "/r/LetsPlayMyGame"
However, on top of that subreddit, it says: "Accepted Platforms: Mobile games or free browser-based games can not be posted here". And the Scirra Arcade automatically fills the post with the scirra arcde game details. a free web-based / mobile game / platform. thus the post got deleted.
The Reddit topic link with the message on top of the page:
https://www.reddit.com/r/LetsPlayMyGame/
It shouldn't suggest this after uploading to the Scirra arcde, or mention and modify the automatically created message so it doesn't apply the Scirra arcade upload to the subreddit.