I am having this same issue. I can't open my downloaded realm on my computer, and I'm receiving the same message. I am using the BDCraft texture pack, on my realm, and I'm able to play on a downloaded version of a backup from a month ago. I've been able to load everything else, including going into the realm, and other worlds, so the issue does appear to only affect the downloaded realm.
I started having this issue the weekend following the release of 1.8.1. I was able to download the day it dropped, and that Thursday, but when we went to download Saturday, we got the "Level Import Failed" msg. The world is 331.7 MB so it doesn't seem that size is the problem.
I got an email response from support on this issue, they told me to simply change my texture pack then I can download the world.... So obviously they don't understand they set up the realm options so it can't be changed unless it's downloaded.
I am having this same issue. I can't open my downloaded realm on my computer, and I'm receiving the same message. I am using the BDCraft texture pack, on my realm, and I'm able to play on a downloaded version of a backup from a month ago. I've been able to load everything else, including going into the realm, and other worlds, so the issue does appear to only affect the downloaded realm.
I started having this issue the weekend following the release of 1.8.1. I was able to download the day it dropped, and that Thursday, but when we went to download Saturday, we got the "Level Import Failed" msg. The world is 331.7 MB so it doesn't seem that size is the problem.
I got an email response from support on this issue, they told me to simply change my texture pack then I can download the world.... So obviously they don't understand they set up the realm options so it can't be changed unless it's downloaded.