When I create a Block, I select the desired components, set a Reference Point and create the Block. When a Block instance is placed, the Reference Point remains as defined...
... unless I copy that Block from one drawing and paste it into another drawing.
The first instance of the Block (when it is pasted into the new drawing works as expected, but pasting a second instance (say, in another Paper space) causes two problems:
1) It wants to create a new Block item and asks to overwrite or not (if not, it creates a new Block with a default name)
2) Whether you overwrite or not, the second usage of the Block item loses the specified Reference Point.
That's not how it's supposed to work.
TC Pro Platinum 2020, 2019, 2018, 2017, 2016 & 2015 (all with LightWorks & RedSDK) & V21
System: i7-5820K @ 3.30GHz, ASRock X99 Extreme4, 16GB DDR4-2133 RAM, Gigabyte GTX 970, Samsung NVMe SSD 950 (256GB), Windows 7 Pro (64-bit) SP1