When the launcher attempts to unpack a custom modpack .zip, it appears to corrupt the file and make it unusable. This prevents anyone from opening the .zip, and the unpack fails, making the pack impossible to use. I should note that when I download the pack's .zip and open it on my own that it unpacks perfectly fine. Could it be something to do with what archiver was used to compress the pack?
Another thing I just found, after attempting to unpack it it reduces the file size from 114,476 kb to 83 kb.
It appears to also happen with every custom modpack except those officially supported.
Question
Pedonymous
Launcher Version: 249
Operating System: Windows 8 x64
Java Version: Version 7 update 17
Description of Problem:
When the launcher attempts to unpack a custom modpack .zip, it appears to corrupt the file and make it unusable. This prevents anyone from opening the .zip, and the unpack fails, making the pack impossible to use. I should note that when I download the pack's .zip and open it on my own that it unpacks perfectly fine. Could it be something to do with what archiver was used to compress the pack?
Another thing I just found, after attempting to unpack it it reduces the file size from 114,476 kb to 83 kb.
It appears to also happen with every custom modpack except those officially supported.
Error Messages:
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