Tvheadend

Hi Guys and Girls, I hope this message finds you all well?
I'm coming to you for advice after hours of pointless search on this issue!!

Here is a sample M3U file for the example

#EXTM3U
#EXTINF:-1, channel name 1
http://132.47.180.150:2030/mux.m3u8
#EXTINF:-1, channel name 2
http://198.37.90.250:2030/udp/031a43

Both Streams/Muxes/Services are well played by VLC

However, my THV does not seem to be able to deal with the 2nd channel.
The one with that type of links formated without .m3u8 extension: http://198.37.90.250:2030/udp/031a43

Does anyone have any idea on this issue?

------- added info
Version of TVHeadend : Build: 4.3~221c29b (2020-04-17T11:26:32+0000)
Running on Synology DSM 6.2.2-24922 Update 4
Package coming from SynoCommunity from th0ma7