Could the massive size of been a bug just how other things don't render proporly like spamming upgrade?

Alpha 12 Release Notes (29/08/2016)

• The economy has been re-balanced to allow more varied strategies and to slow the progression slightly
• Prestige levels in science can no longer be negative
• You can no longer upgrade a research station while it is currently being upgrading
• Fixed a bug where the research stations were not being correctly upgraded when loading saved data
• Force fields are now toggled via a context menu
• Added a background to the UI buttons
• Added a mute button
• Reduced UI draw calls
• Seeds now have a limited lifespan
• Added LOD system to research stations

this is working much better thanks I'm still trying to cause the giant plant

Alpha 12a Release Notes (31/08/2016)

• Fixed a bug where the upgrades of research stations were not appearing correctly
• Fixed a bug where upgrade cost was incorrectly calculated on load

Alpha 13 Release Notes (11/09/2016)

• Force field size can now be adjusted with a slider
• Adjusted economy balance
• Removed the tutorial in favor of a list of objectives/achievements to guide the player
• Added first music track. This was created especially for the game by MIDIEvil Studios. You will not hear the track play all the time, keep playing and it will play.

Update 15 Release Notes (23/09/2016)

• Added a third map
• Added a volume slider to the system menu
• Tool tips now appear when the player mouses over a button
• Player starting location has been moved
• Added a quick message at start of game
• Changed size of unlock window so you no longer have to scroll
• Force field slider only appears when force field is on
• There are now range indicators for all buildings
• When focus is lost from the menu it selects the last selected button rather than the creature button
• Increased science income rate slightly
• Added some controls diagrams to tooltips

Update 15b Release Notes (25/09/2016)

• Spent most of the weekend optimising the physics and genetics simulation, most of you should see an performance increase :)

Update 16 Release Notes (02/10/2016)

• Further performance improvements
• Plant size now updates correctly if you change the genetics
• Resource buildings now have displays telling you how much resource they are generating

Update 16b Release Notes (07/10/2016)

• Fixed a memory management issue which was limiting the number of seeds which could coexist at one time
• Reduced initial loading time

Update 17 Release Notes (22/11/2016)

• The controls are now displayed when mousing over a button in the system menu
• Tweeked blood effects
• Carnivores can now eat herbivore eggs
• Tweeked model to make it slightly easier to manage your ecosystem
• Reduced radiation levels
• Added message to suggest players use controller
• Improved skybox color to help make UI easier to read
• Slight optimisation of plant behaviour
• Added death animations for all organisms

Update 17b Release Notes (4/12/2016)

• Updated to Unity 5.5
• Revamped keyboard and mouse controls
• Added some post processing

Update 18 Release Notes (11/12/2016)

• Changed model to try and increase the turnover of generations
• Increased plant performance by updating height less frequently (animation less smooth but it has doubled the framerate late game)
• Performance optimisations
• Fixed bug where force field was not working
• Changed player controller implementation (introduced a bug where players can fly through the ground - whoops)

Launch Build Release Notes (28/12/2016)

• Increased target frame rate for dynamic optimisations
• Decreased map size to improve performance
• Fixed bug introduced in last patch which allowed player to move through objects
• Clamped vertical camera control which should stop the camera weirdness some players have observed
• I've removed the inspector - may be controversial for some but I'm trying to cut things to make the game more simple/elegant
• Added an interactive tutorial
• Added a 'Research Unlocked' message
• Added FOV and camera sensitivity sliders
• Changed highlighted UI colour

v1.1 Release Notes (04/01/2017)

• The genetic engineering unlock functions have now changed. Instead of changing the maximum potential gene now you can create species with exactly the genes you want.
• Only one of the science/genetics/graph panels appears at one time now

v1.2 Release Notes (19/01/2017)

• Attempt to fix a cursor bug with linux build
• Improved performance of creature AI

v1.4 Release Notes (29/01/2017)

• Replaced text to speech with voice acting by Daniel van der Winkel

v1.5 Release Notes (08/02/2017)

• When you look at a research station the relevant button is selected automatically
• You can no longer accidentally select the system menu when navigating with the cursor keys
• Tutorial message stays on screen more
• Fixed bug in creature behavior and improved performance

v1.6 Release Notes (05/03/2017)

• Changed some wording for controls
• Removed save location text
• Research UI stays when looking at a research station
• Improvements to memory management
• Fire effect looks correct on larger plants
• Performance improvements
• Re-balanced level curves
• Added background panels to UI
• Buildings menu appears when upgrade button is available - to help you compare prices of upgrades to buying new buildings
• Improved control information