FCustomThunkTemplates::Array_Get() fails to properly initialize a default item when the index is invalid:
Item = U{};
That will leave the item uninitialized (e.g. UDS types). Should be using the TArray's Inner property to call InitializeValue() instead.
(See UDN thread)
Basically, set up a BP in which you have an array of user-defined struct elements, and then use a 'Get' node to attempt to access an invalid index. The "default" item returned will not be fully initialized in the nativized build.
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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-57955 in the post.
0 |
Component | UE - Gameplay - Blueprint |
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Affects Versions | 4.17, 4.18, 4.19 |
Target Fix | 4.22 |
Created | Apr 19, 2018 |
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Resolved | Nov 7, 2018 |
Updated | Oct 3, 2019 |