Modpack version:
Beta-0.1

Description:
You can't break any creative block from thermal in survival. Neither with the crescent hammer, nor with a pickaxe.
I have tried the portable tank, energy cell, cache and strongbox.

Steps to reproduce:

1. Place a portable tank/energy cell/cache/strongbox (any level except creative)
2. Give yourself a creative conversion kit
3. Use it on the chosen block
4. Try to break it with a pickaxe or a crescent hammer

Expected behavior:
When using the Crescent Hammer or mining it with a pickaxe, the Creative Block should drop.

Additional context:
As I cannot go into editing mod of the quests and look through the creative stage quests, I cannot tell if there is a warning in some quest (even though from the icons, I don't know if there even is a quest for the Creative Conversion Kit). If this can't be fixed in a thermal config, I would suggest adding a warning as a tooltip to the conversion kit itself.

Just tested this and apparently you need OP to pick them up with a Crescent Hammer. You still can't break them with tools, though, but that shouldn't be an issue if the hammer works.

That is good news! At least for singleplayer and private servers... On the officials, that is still not super great.

Unfortunately there are no configs to change this behaviour, so I added the following note to the Creative Conversion Kit quest:

"Note: If you're playing on a public server, you won't be able to break or pick up any Thermal Expansion Creative machine obtained from the Creative Conversion Kit, unless you're OP'ped - then you can use a Cresent Hammer. So make sure to place them in all in a desired spot!
However this doesn't affect Singleplayer mode or small private servers, as you'll be able to pick up any Creative Thermal machine with a Crescent Hammer regardless."