when editing part of the movie clip in slow motion the audio is muted in that part

[LuminousSky]

Hello,

As the title says, at first I thought that the audio is temporarily muted because of rendering issues. But I saved the edited video, with the SloMo and then I played the edited video but there was no sound at the edited (SloMo) part.

Any idea?

[LuminousSky]

Nothing? No one else experienced this issue?