Issue description:

Server crashes due to Ticking block entity.

What happens:

Two relays are activated by a redstone signal sent over EnderIO conduit connectors. The first relay activates fine, but with a 60 tick delay for the second relay. The Server Crashes when the second relay is activated.

screenshoot

What you expected to happen:

of note, this was working with previous versions.

This is a Wither mob farm where I have constructors building a Wither.

Steps to reproduce:

1. place two relays both set i only be active with restone signal
2. the first replay is activated right away and the second one is activated after 60 ticks. Done by any means you can. (I've tried multiple mods including vanilla)
3. send a redstone signal
4. server crashes

Version (Make sure you are on the latest version before reporting):

• Minecraft: 1.10.2
• Forge: 12.18.3.2185
• Refined Storage: 1.2.20

Does this issue occur on a server? yes

If a (crash)log is relevant for this issue, link it here:

https://gist.github.com/iansheridan/62f627b0c4e934b6bbeb9c28ed8bc078

This was fixed in 1.2.21, update please

Oh, thank you. I rely on nodecraft.com and FTB team for updates of this nature. good to know that it's fixed. I will bug the FTB team and nodecraft.com.