asus port foward does not work

Stock Firmware Version:3.0.0.4.386_46061 Hello. on my RT-AX86U port forwarding does not work. I believe it started happening after recently enabling AiMesh. The AiMesh node is ASUS RT-AC68U connected to ASUS RT-AX86U using LAN ethernet. AiProtection is disabled. The main router RT-AX86U WAN...