Communication is not working properly when ICMP rules are changed dynamically

Steps:

• Created SG1 with ICMP all ingress and egress rules.
• Created 2 VMs with SG1 and verified ping communication between the VMs.
• Removed ICMP all ingress and egress rules from SG1. Verifed ping communication is not working as expected.
• Once again added the same ICMP all ingress and egress rule to SG1.

Observation:

• The communication between the VM is not working.

Expected behavior:

• Ping has to succeed.

Observed the above behavior two out of three times.