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I have a test and found that there is indeed this problem. Because it is a holiday, I don’t have a debugging and analysis tool at hand, so I can’t analyze it in depth. You can flash the latest test firmware with uboot. Latest test firmware is ok.
Latest test firmware：http://download.gl-inet.com/firmware/snapshots/3.201_beta6/mt1300/
Uboot flash firmware：Debrick via Uboot - GL.iNet Docs