I just place my reinforced doors near the keycard reader and they both open correctly.
But if I restart the server, then just the door near the keycard reader will open and the other one stays closed.

When reporting bugs and crashes, please always include at the very least the Minecraft version, the Forge/Fabric version, and the mod version. This helps narrow down when an issue may have first occurred, or whether it has already been fixed.

I'm sorry, you're right.
I'm playing on 1.12.2 Forge (Latest Mod Version)

Please don't say "latest version". It's ambiguous, and there is no way to know that what you believe to be the latest version is actually the latest version. Only use explicit version numbers, it makes everything so much easier.

I'm sorry. This is the filemame:
[1.12.2] SecurityCraft v1.9.7.jar

No worries, thank you! I will look into this in a bit.

I can reproduce this. We'll try and get the bug fixed for the next update, thank you for reporting it!

Were you able to reproduce the issue?

Read my previous comment.

Oh, I'm sorry, I didn't really understand what you were saying previously.