PowerConnect 7024 - IPv6 route issue

I have IPv6 route issue from SonicWall to server of 1 VLAN in L3 switch.

Sonicwall
WAN: 2403:b100:1001:7::2/126
LAN: 2403:b100:1012::1/64
Static route: 2403:b100:1012:1::/64 2403:b100:1012::4/128

L3 switch
VLAN 100: 2403:b100:1012::4/64
VLAN 1: 2403:b100:1012:1::1/64
Static route: ::/0 2403:b100:1012::1/128

Server IP
2403:b100:1012:1::2/64

Ping testing result
From sonicwall:-
Can ping 2403:b100:1001:7::2, 2403:b100:1012::1, 2403:b100:1012::4, 2403:b100:1012:1::1 and 2001:4860:4860::8888(google DNS).
Cannot ping 2403:b100:1012:1::2

From L3 switch:-
Can ping 2403:b100:1001:7::1, 2403:b100:1012::1, 2403:b100:1012::4, 2403:b100:1012:1::1, 2403:b100:1012:1::2 and 2001:4860:4860::8888(google DNS). All passed.

From Server IP:-
Can ping 2403:b100:1012:1::2, 2403:b100:1012:1::1 and 2403:b100:1012::4
Cannot ping 2403:b100:1012::1, 2403:b100:1001:7::1 and 2001:4860:4860::8888(google DNS).