FX Offset bug

I've discovered this issue across a number of show files now on both consoles and Hog PC 3.6.1
When assign fx offsets across a large group of fixtures, the latter portion of the group act as though they are buddy-ed

E.g
I currently have 12 x X4 bars in 88ch mode (ID 801-812.20) I assign an Intensity chase and enter 0>350>0 in the Offset window
Fixtures 801.1 > 807.4 behave as expected, fixtures 807.5 onwards are all assigned the same offset (0)
I can edit the offsets correctly by opening the cue after the fact

I've seen this behaviour with other large amounts of fixtures, Nexus panels, rgbs etc...Possibly the common factor is I've used dotted fixture numbers in all these instances
And there has definitely been no Buddying/segments selected and Buddy parts has been deselected on these attempts