Can you provide more details on which patterns don't appear to evolve correctly?
I tested the following pattern in Golly 4.3 and in LifeViewer build 1226. It appears to work the same way in both cases. In particular generation 100 shows population 476 and bounding box 27-by-112. Is that as expected, or it is supposed to evolve differently?
Code:
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x = 10, y = 10, rule = Ice
A2.A2.2B.B$.2B.A.A.BA$BA3.B.A2B$3A2.A2BA$.A2.BA$.BA2.2A2B$B.A2.A.A$A.
AB2.B3A$2.BA.A.A.B$A5.BABA!
@RULE Ice
@TABLE
n_states:3
neighborhood:Moore
symmetries:reflect_horizontal
var a={0,1,2}
var b=a
var c=a
var d=a
var e=a
var f=a
var g=a
var h=a
var i={0,2}
var j=i
var k=i
var l=i
var m=i
var n=i
var o={0,1}
#B3-a & S3-a
o,1,1,i,1,j,k,l,m,1
o,1,1,i,j,1,k,l,m,1
o,1,1,i,j,k,1,l,m,1
o,1,1,i,j,k,l,1,m,1
o,1,1,i,j,k,l,m,1,1
o,1,i,1,1,j,k,l,m,1
o,1,i,1,j,1,k,l,m,1
o,1,i,1,j,k,1,l,m,1
o,1,i,1,j,k,l,1,m,1
o,1,i,j,1,1,k,l,m,1
o,1,i,j,1,k,1,l,m,1
o,i,1,1,1,j,k,l,m,1
o,i,1,1,j,1,k,l,m,1
o,i,1,1,j,k,1,l,m,1
o,i,1,1,j,k,l,1,m,1
o,i,1,1,j,k,l,m,1,1
o,i,1,j,1,1,k,l,m,1
o,i,1,j,1,k,1,l,m,1
o,i,1,j,1,k,l,1,m,1
o,i,1,j,1,k,l,m,1,1
o,i,1,j,k,1,1,l,m,1
o,i,1,j,k,1,l,1,m,1
o,i,1,j,k,1,l,m,1,1
o,i,1,j,k,1,1,l,m,1
o,i,j,1,1,k,1,l,m,1
o,i,j,1,1,k,l,1,m,1
o,i,j,1,k,1,1,l,m,1
o,i,j,1,k,1,l,1,m,1
o,i,j,k,1,1,1,l,m,1
#S23a
1,1,1,1,i,j,k,l,m,1
1,i,j,1,1,1,k,l,m,1
1,1,1,i,j,k,l,m,n,1
1,1,i,1,j,k,l,m,n,1
1,1,i,j,1,k,l,m,n,1
1,1,i,j,k,1,l,m,n,1
1,i,1,1,j,k,l,m,n,1
1,i,1,j,1,k,l,m,n,1
1,i,1,j,k,1,l,m,n,1
1,i,1,j,k,l,1,m,n,1
1,i,1,j,k,l,m,1,n,1
1,i,1,j,k,l,m,n,1,1
1,i,j,1,1,k,l,m,n,1
1,i,j,1,k,1,l,m,n,1
1,i,j,1,k,l,1,m,n,1
1,i,j,1,k,l,m,1,n,1
1,i,j,k,1,1,l,m,n,1
1,i,j,k,1,l,1,m,n,1
#Water->Ice
2,a,b,1,c,d,e,f,g,1
2,a,b,c,d,1,e,f,g,1
2,a,b,c,d,e,f,1,g,1
#gravity
i,2,j,a,b,c,d,e,k,2
#defaults
i,a,b,c,d,e,f,g,h,0
1,a,b,c,d,e,f,g,h,2