Now thanks to Familia Werneck providing me with a save file I have FINALLY fixed the Day-care bug.
It seems to be corruption caused by G3HS regarding the Egg Move Table. So I would recommend people to not use this feature of the tool.
Navigate to 25F7F2 in your rom and paste in this section of bytes:
Code:
00 00 00 0C 01 11 05 0F 08 00 20 5A 41 08 00 00 00 00
20 5A 41 08 01 00 00 00 C8 61 41 08 05 00 00 00
FC F7 25 08 ED 7A 10 08 B5 69 04 08 03 00 03 00
00 02 08 00 20 31 01 03 3C E3 41 08 61 E3 41 08
7C E3 41 08 A8 E3 41 08 FE FF 60 6F 8B FF F4 4B
28 25 72 4E DE 6B 9D 53 19 43 2F 27 4D 2A 1C 00
1C 00 1C 00 1C 00 1C 00 1C 00 1C 00 90 73 00 00