No matter what I set for “Start Time”, the sound always plays from the beginning when using PlaySound2D. This happens from both the Blueprint function and the C++ function. I checked in UE5 EA2 and it’s working fine there, so this problem seems to be specifically in Preview.
Got to the same issue today.
The weird thing is when I change the Sound Asset Compression Type to any other option than “Platform Specific” (I’m working on Windows) it works as expected. But it looks like I have to do that for every Sound Asset.
i can also confirm the issue.
and also the workaround from @tinu.io works for now 
I am encountering a similar issue with “Play sound at location” it seems the “Start time” is not being respected.
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Same issue. The sound asset I’m using is loaded at runtime via the Runtime Audio Importer plugin. However I cannot set the start time on Play Sound 2D. I don’t think I can change the Compression type in my case.
Hi, I think I have a sort of solution, if it`s still relevant.
Solution: 1.1 Convert sound to MetaSound.
1.2 Create in MetaSound Float Input Name it “StartTime” or what you prefer more.
1.3 Convert Float to Time.
1.4 Connect Time to Start Time.
2.1. Use “Set Float Parameter”
2.1.a In Name set “StartTime”
2.1.b In Float set your start time.
2.2 Use “Play”
Sorry if it’s too dirty hack.
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No bueno for me. Any other details? This is so annoying, it is a bug right? Start time should work?
update: changing the compression type did work for me as well as mentioned above. I had some other junk in there that confounded things.
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