Linux kernel 6.1 also works without any problems. The working system works as follows.
An evil twin attack is performed with a wifi card with Mediatek mt7612u chipset.
However, Linux 6.12 does not send deauth packets when performing an evil twin attack. When it creates 1 interface, it can send deauth packets. When it creates 2 interfaces, it cannot send deauth packets.
When I checked the necessary tools, I could not find any problems. When I downgraded the kernel version, I saw that the problem was solved.