I would suggest this be made a sticky so people can add what they find as they go.

If everyone could reply starting with the two items that cause a bug / crash when combined (or an item and a command / action) at the start of each post, it will make it much easier to scan through at a later date.

So let me begin my report...


Rednet Cable + Lever - WORKAROUND FOUND

Approx 03:30 and 03:45 UTC (am ... + daylight savings)

The game crashed when I tried to place a lever onto a rednet cable (works fine in Fekkit). Server was unaffected as far as I can tell, as I managed to log back in and do it again, crashing the game again (not the server).

I have both crash reports ready to send to Mojang (as the game requests), but I don't know how to send it to them???

WORKAROUND: When placing the lever onto the rednet cable, hold shift and then right click on the end of the cable - this will place the lever without crashing you out of the game

I would be suprised if Mojang could help in that case, as I doubt they would or even could provide support for it's interaction with those mods.

mod crashes to mojang?
Wouldnt know how mojang could fix a mod they have nothing to say about...
At one point we should send these to the mod authors tho.

NEI + Item in crafting grid + shift click on ? sign with a recipe not using the item in grid

Client crash, server unaffected.

Bug : Microblocks
After placing the microblocks, if the chunk despawn ( i.e. you relog / go to nether ) the microblocks you placed might have a chance go invisible. The place where the microblocks used to be CANNOT place item on, you need to place another microblocks and break it OR use a piston to push it away to make the space. Using piston to push the microblocks would not affect the place where the ghost microblocks pushed to.

Additional to Hotmages bug. In my instances the microblocks have vanished entirely on chunk loads/server restarts. I am able to place blocks where they once were.

Can't remove self-placed warded glass or arcane pressure plates with casting wand for some reason.

Haven't tested with warded stone blocks yet.

Removing arcane doors works, though.

Rednet cable + levers problem fixed (sort of) - see original post for details...

Sticky pistons seem to have become invisible. Connected via redned lever control. They are still there and i can hit them but can only see the selection bounding box otherwise it's a big gaping hole.

I posted this in reports before seeing this thread but might be relevant so I copy below.

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I don't think this is a grief but may be a bug with FTBU causing items to go missing.

Yesterday I was in the middle of creating 7 ultimate hybrid solar panels, I had almost everything I needed including 7 advanced solar panels and most of the materials to convert them.

I needed some more glowstone dust and so I placed my important items into my ME storage system as I was going to the nether. So I go to the nether and I am there for about ten mins mining glowstone, I warp back to base and when I look for the advanced solar panels I had recently created they are nowhere to be found, or a lot of the materials I had been collecting to convert them.

Now I am pretty sure that no one came and stole them and this is not actually the first time something like this has happened, (Although I blamed backup restores for previous times) but this time I was on the server all the time and there was only a short time between having the items in my inventory and them being gone.

I looked up the following in google "items lost in ME storage" and found a thread discussing missing items (https://github.com/nallar/TickThreading/issues/246) and blaming TickThreading mods for causing it which I believe is used on the server.

Can any other players confirm items going missing strangely? I think it is worth investigating in case TickThreading is causing problems.

In reply to the above.
We have had sort of a similar thing happen at our base some a few times.
The inventories in the chunk seemed to "revert" all that we had done in the time, putting back items and blocks we had already used.
This has happened 2 times while I was online.
1st time it reverted a lot of the sorting I did.
2nd time it put tools in a chest while i had said items still on me.

Just had a similar thing: had one obsidian left in a chest and took it out to build a grav.gun. About 20mins later opening the same chest and still having one obsidian sitting there. Maybe i oversaw one but it was sitting in the exact same slot. And placeable so no ghosting involved.
Maybe unsync chest inventory? Minor in my case but that bug could turn out to be a really bad one