Memory card cannot detect p2ps or even any ae2 item as a valid machine when right clicked on a p2p it says invalid machine. It is able to clear memory on shift + right click.

• Minecraft Version: 1.12.2
• AE2 Version: appliedenergistics2-rv6-stable-7
• Forge Version: forge-14.23.5.2847

You have to SHIFT + Right click the tunnel first, than by right clicking on the other tunnels you are connecting them together

Sometimes memory card will not work if you have any items in your off-hand

yea tried it with no items in off-hand while shift-right clicking it. It worked thank you.

Forge/Vanilla bug. Nothing we can really do about it.