diff --git a/euclid.cpp b/euclid.cpp
index 8446b7f4..cdd8cefa 100644
--- a/euclid.cpp
+++ b/euclid.cpp
@@ -1189,6 +1189,9 @@ EX void generate() {
   
   auto& cs = cgi.cellshape;
 
+  cgi.loop = 4;
+  cgi.schmid = 3;
+
   if(S7 == 6) {
     cgi.adjcheck = 1;
     cgi.face = 4;
@@ -1245,6 +1248,8 @@ EX void generate() {
         }
       }
     }
+  
+  reg3::make_vertices_only();
 
   }
 
diff --git a/fieldpattern.cpp b/fieldpattern.cpp
index 257f9c83..c3ae3551 100644
--- a/fieldpattern.cpp
+++ b/fieldpattern.cpp
@@ -1173,6 +1173,7 @@ EX struct fpattern& getcurrfp() {
     fp.Prime = 11; fp.force_hash = 0x363D8DA4u; fp.solve();
     return fp;
     }
+  if(!hyperbolic) return fp_invalid;
   if(WDIM == 3 && !quotient && !hybri && !bt::in()) {
     static fpattern fp(0);
     if(fp.Prime) return fp;
@@ -1180,7 +1181,6 @@ EX struct fpattern& getcurrfp() {
     DEBB(DF_FIELD, ("set prime = ", fp.Prime));
     return fp;
     }
-  if(!hyperbolic) return fp_invalid;
   if(S7 == 8 && S3 == 3 && !bt::in()) {
     static fpattern fp(17);
     return fp;
diff --git a/reg3.cpp b/reg3.cpp
index 967377c7..d59e02b1 100644
--- a/reg3.cpp
+++ b/reg3.cpp
@@ -80,6 +80,16 @@ EX namespace reg3 {
       cgi.ultra_mirrors.push_back(rspintox(v) * xpush(cgi.ultra_mirror_dist*2) * MirrorX * spintox(v));
     }
 
+  EX void make_vertices_only() {
+    auto& vertices_only = cgi.vertices_only;
+    vertices_only.clear();
+    for(hyperpoint h: cgi.cellshape) {
+      bool found = false;
+      for(hyperpoint h2: vertices_only) if(hdist(h, h2) < 1e-6) found = true;
+      if(!found) vertices_only.push_back(h);
+      }
+    }
+
   EX void generate() {
 
     if(fake::in()) {
@@ -89,7 +99,6 @@ EX namespace reg3 {
   
     int& loop = cgi.loop;
     int& face = cgi.face;
-    auto& vertices_only = cgi.vertices_only;
     auto& spins = cgi.spins;
     auto& cellshape = cgi.cellshape;
     auto& adjcheck = cgi.adjcheck;
@@ -241,13 +250,7 @@ EX namespace reg3 {
       for(auto& v: cellshape) v = T * v;
       }
 
-    vertices_only.clear();
-    for(hyperpoint h: cellshape) {
-      bool found = false;
-      for(hyperpoint h2: vertices_only) if(hdist(h, h2) < 1e-6) found = true;
-      if(!found) vertices_only.push_back(h);
-      }
-
+    make_vertices_only();
     compute_ultra();
     
     for(int a=0; a<S7; a++)