diff --git a/coordinator/renderer.lua b/coordinator/renderer.lua
index d9e4b58..0e34ee1 100644
--- a/coordinator/renderer.lua
+++ b/coordinator/renderer.lua
@@ -3,6 +3,7 @@
 --
 
 local log        = require("scada-common.log")
+local util       = require("scada-common.util")
 
 local iocontrol  = require("coordinator.iocontrol")
 
@@ -195,18 +196,21 @@ function renderer.try_start_ui()
             if engine.monitors.main ~= nil then
                 engine.ui.main_display = DisplayBox{window=engine.monitors.main,fg_bg=style.root}
                 main_view(engine.ui.main_display)
+                util.nop()
             end
 
             -- show flow view on flow monitor
             if engine.monitors.flow ~= nil then
                 engine.ui.flow_display = DisplayBox{window=engine.monitors.flow,fg_bg=style.root}
                 flow_view(engine.ui.flow_display)
+                util.nop()
             end
 
             -- show unit views on unit displays
             for idx, display in pairs(engine.monitors.unit_displays) do
                 engine.ui.unit_displays[idx] = DisplayBox{window=display,fg_bg=style.root}
                 unit_view(engine.ui.unit_displays[idx], idx)
+                util.nop()
             end
         end)
 
diff --git a/coordinator/ui/components/unit_detail.lua b/coordinator/ui/components/unit_detail.lua
index 2264b00..fe36a85 100644
--- a/coordinator/ui/components/unit_detail.lua
+++ b/coordinator/ui/components/unit_detail.lua
@@ -352,6 +352,8 @@ local function init(parent, id)
         t3_trp.register(t_ps[3], "TurbineTrip", t3_trp.update)
     end
 
+    util.nop()
+
     ----------------------
     -- reactor controls --
     ----------------------
diff --git a/coordinator/ui/layout/flow_view.lua b/coordinator/ui/layout/flow_view.lua
index 98d16e9..06edf27 100644
--- a/coordinator/ui/layout/flow_view.lua
+++ b/coordinator/ui/layout/flow_view.lua
@@ -250,6 +250,7 @@ local function init(main)
         local y_offset = y_ofs(i)
         unit_flow(main, flow_x, 5 + y_offset, #water_pipes == 0, units[i])
         table.insert(po_pipes, pipe(0, 3 + y_offset, 4, 0, colors.cyan, true, true))
+        util.nop()
     end
 
     PipeNetwork{parent=main,x=139,y=15,pipes=po_pipes,bg=style.theme.bg}
@@ -335,6 +336,8 @@ local function init(main)
         end
     end
 
+    util.nop()
+
     ---------
     -- SPS --
     ---------
diff --git a/coordinator/ui/layout/main_view.lua b/coordinator/ui/layout/main_view.lua
index f31c200..cba1747 100644
--- a/coordinator/ui/layout/main_view.lua
+++ b/coordinator/ui/layout/main_view.lua
@@ -3,6 +3,7 @@
 --
 
 local iocontrol     = require("coordinator.iocontrol")
+local util          = require("scada-common.util")
 
 local style         = require("coordinator.ui.style")
 
@@ -53,6 +54,8 @@ local function init(main)
 
     cnc_y_start = cnc_y_start + row_1_height + 1
 
+    util.nop()
+
     if facility.num_units >= 3 then
         -- base offset 3, spacing 1, max height of units 1 and 2
         local row_2_offset = cnc_y_start
@@ -64,6 +67,8 @@ local function init(main)
             uo_4 = unit_overview(main, 84, row_2_offset, units[4])
             cnc_y_start = math.max(cnc_y_start, row_2_offset + uo_4.get_height() + 1)
         end
+
+        util.nop()
     end
 
     -- command & control
@@ -79,6 +84,8 @@ local function init(main)
 
     process_ctl(main, 2, cnc_bottom_align_start)
 
+    util.nop()
+
     imatrix(main, 131, cnc_bottom_align_start, facility.induction_data_tbl[1], facility.induction_ps_tbl[1])
 end