Hello.
With recent update of bob's there is more unneeded things in user interface. Of course all items are debatable.
1. Steam powered mining drill - nothing to mine should be remove.
2. Both type of walls. It is not used in anything and walls itself in seablocks are not that needed then in normal play.
3. Burner assebling machine, burner electric generator and steam powerd assembling machine. Again this one is not used in any recipe. And i can't see any situation when you need to use this.
4. Converter valve - no need to convert base game fluids to Angels one

Thanks for your suggestions. My current decision:
1. will be removed for the reason you named
2. stay, because I have seen people using them for decorative purposes or as barriers to move easier through their bases with high tier exoskeletons. While I was considering it I decided to make stone walls an ingredient of reinforced walls.
3. Using them might be a interesting challenge for some players. It is also possible to remove all of them via the startup settings. I decided to leave them for now.
4. will be removed. Alongside the new valves from bob

Thanks!

Here is error i got with this:
https://paste.pics/6IO27

PS after i post this i find the couse of the error.
The steam mining drill was disabled in mod settings. After enable it back mod start to work just fine.

Also neve think about wall and exosceleton trick. That was smart move )