I´m using my iPad (7th Generation) and iOS 14.4 with checkrain 0.12.4.
It worked for two years now with this hack menu.
You are right. I have this issue since the last SWGOH client Update and your hack update on December 14th but it seems like it´s another thing.
There is a new message in Cydia that started the same time when the client update came out.
"Failed to fetch hit://apt.modmyi.com/dists/stable/InRelease NetDB: Open nodename nor server name provided, or not known."
"Some index files failed to download. They have been ignored, or old ones used instead."
Maybe it´s because of this so my jailbreak doesn`t work anymore? Do you know alternatives zu modmyi?