I was having very frequent issues with the ads either not loading entirely or would crash sometime during the ad since either August or September of 2017. Not only that, but since the recent maintenance as of roughly 9:16 pm 2/7/18, I'm unable to access any form of in-game customer support including: Fyber support and Monster Legends support. If I select "View Tasks" in Monsterwood and if I select "Support" in the settings menu, the game would crash. I have tested both roughly three times and the same results was received.
A fix for this on the Amazon Kindle Fire HD (3rd gen) would be greatly appreciated. Thank you for reading and hope you have a pleasant day.