A Level Sequence in QAGame doesn't cook deterministically, and is always included in patches.
Possibly related to [Link Removed]
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-44912 in the post.
| 0 | 
| Component | UE - Foundation - Core - Cooker | 
|---|---|
| Affects Versions | 4.15.2, 4.16 | 
| Target Fix | 4.17 | 
| Fix Commit | 3453782 | 
|---|---|
| Main Commit | 3499771 | 
| Created | May 11, 2017 | 
|---|---|
| Resolved | May 23, 2017 | 
| Updated | Jun 20, 2017 |