If i try to add a item to the inventory and try to traceout the length and add index, the length is 0 and the add index 0 too? Just looking on the nodes it appears just straid forward to do it like this, but doesnt seam work this way… and i dont get why
I reproduce this in 4.15, but I also tested this in our latest internal build where there has been multiple improvements to struct arrays. I was able to get this setup working there. So you will see this working properly in a future engine release.
In the meantime you have your workaround to get by it.