Question Dynamic Buffer issue

Entities 1.0

Job 1 (System A):
1. Create Entity with parallelwriter ECB
2. AddBuffer<T> (off-chunk)
3. AppendToBuffer<T>
4. ECB executes at end of SystemGroup A

Job 2 (System B):
1. backwards for loop DynamicBuffer<T>
2. check element, if criteria met RemoveAt(i)
3. if buffer empty, remove buffer via parallel ECB
4. ECB executes at end of SystemGroup B

Result:

Index 0 is out of range, but buffer is Length > 0

I've been banging my head against this for days and i'm failing to see what i'm doing wrong.
My code worked without issues in 0.51 - upgrading to 1.0 seemingly broke DynamicBuffers or ECBs or both.

Anyone else experiencing this?

 

Second issue:

Using ComponentLookup with a corrupt Entity Index - produced by a corrupt IBufferElementData with one Entity field (result of issue #1) - crashes the Editor. Error log shows either Entity is still deferred or Entity Index is larger than EntityStore Capacity.

Losing my sanity.

 

Try submitting minimal bug repro. If it happens outside your project in a clean environment - then its most likely a bug.

As an alternative solution - try writing to the buffer directly via BufferLookup instead of ECB.
Not everything has to be parallel or deferred in order to be fast. Maybe there's a better solution but its hard to find out one without an actual context.