Weird bug with getting dynamic buffers

Unity Engine
,
1

Hello all,

This returns an error

DynamicBuffer<SailDisplayPoint> sailPointsBuffer = EntityManager.AddBuffer<SailDisplayPoint>(headEntity);
DynamicBuffer<SailDisplayTri> sailTrisBuffer = EntityManager.AddBuffer<SailDisplayTri>(headEntity);

for(int i = 0, l = entities.Length; i < l; i++)
   sailPointsBuffer.Add(new SailDisplayPoint() { Entity = entities[i] });

“InvalidOperationException: The NativeArray has been deallocated, it is not allowed to access it” on the last line BUT

DynamicBuffer<SailDisplayPoint> sailPointsBuffer = EntityManager.AddBuffer<SailDisplayPoint>(headEntity);
//DynamicBuffer<SailDisplayTri> sailTrisBuffer = EntityManager.AddBuffer<SailDisplayTri>(headEntity);

for(int i = 0, l = entities.Length; i < l; i++)
   sailPointsBuffer.Add(new SailDisplayPoint() { Entity = entities[i] });

I have not referenced sailTrisBuffer at all and can’t see what I am doing wrong. Can there only be one Dynamic Buffer per entity?

2

Any structural change call to EntityManager invalidates arrays.

Simply need to call getbuffer after you add the second buffer instead.

3

Ah makes sense! Thanks as always for the help.