Song interrupted and skipped when "play next" used under very specific conditions

[Ti-Car]

Shuttle version:

v2.0.10 free

Device, OS:

Samsung Galaxy A7 2018, Android 8.0.0

Description of bug:

When the last song of the queue is playing, if I remove one or more songs above it in the queue through selection and then try to add a song to the queue by tapping "play next", then the new song is added at the beginning of the queue and not after the last song, the song being played stops and Shuttle skips to the newly added song.

Steps to reproduce:

1. Create a queue and play its last song (eg. just play the last song of an album).
2. Select one or more songs above it and remove it/them by tapping the appropriate icon. The issue doesn't occur if the song is removed tapping on the three dots and selecting "remove from the queue"; the selection has to be done by long-pressing the song(s) to be removed.
3. Go to the artist, album, songs or playlist tab, tap on the three dots next to whatever artist, album, song or playlist and choose "play next".

Expected outcome:

The artist, album, song or playlist is added at the end of the queue - which is, right after the song now played. The song keeps playing regularly till the end.

Actual Result:

The songs are added at the beginning of the playlist and Shuttle immediately skips to the first of them, interrupting abruptly the song which was playing.

Observations
Very specific issue, I know. And one could wonder why one can't just select "add to the queue" instead of "play next" and forget about this. But still.