Tvheadend

Hello,
today I tried tried to setup my old HDHomerun to see if it still works and it does, but unfortunately found out that there is a problem with switching the input signal. The problem occurs, when I try to switch from DVB-T to DVB-C in the TVH settings and results in a crash. To verify it's not a problem with the HDHR, I set up another TVH box (same version) with Debian Stretch and everything works as expected. Here is a log from TVH:

2022-03-23 13:21:40.766 [ INFO]:tvhdhomerun: Setting override_type : DVB-C
2022-03-23 13:21:40.801 [ ALERT]:CRASH: Signal: 11 in PRG: /usr/bin/tvheadend (4.3-2010~g3b1d7a928) [56155702e3bc78437ccf3db0f9b5b8597584d432] CWD: /
2022-03-23 13:21:40.801 [ ALERT]:CRASH: Fault address (nil) (N/A)
2022-03-23 13:21:40.801 [ ALERT]:CRASH: Loaded libraries: linux-vdso.so.1 /lib/x86_64-linux-gnu/libdvbcsa.so.1 /lib/x86_64-linux-gnu/libssl.so.1.1 /lib/x86_64-linux-gnu/libcrypto.so.1.1 /lib/x86_64-linux-gnu/libz.so.1 /lib/x86_64-linux-gnu/libpcre.so.3 /lib/x86_64-linux-gnu/liburiparser.so.1 /lib/x86_64-linux-gnu/libavahi-common.so.3 /lib/x86_64-linux-gnu/libavahi-client.so.3 /lib/x86_64-linux-gnu/libdbus-1.so.3 /lib/x86_64-linux-gnu/libdl.so.2 /lib/x86_64-linux-gnu/libpthread.so.0 /lib/x86_64-linux-gnu/libm.so.6 /lib/x86_64-linux-gnu/libmvec.so.1 /lib/x86_64-linux-gnu/libstdc++.so.6 /lib/x86_64-linux-gnu/libc.so.6 /lib/x86_64-linux-gnu/libsystemd.so.0 /lib64/ld-linux-x86-64.so.2 /lib/x86_64-linux-gnu/libgcc_s.so.1 /lib/x86_64-linux-gnu/librt.so.1 /lib/x86_64-linux-gnu/liblzma.so.5 /lib/x86_64-linux-gnu/libzstd.so.1 /lib/x86_64-linux-gnu/liblz4.so.1 /lib/x86_64-linux-gnu/libgcrypt.so.20 /lib/x86_64-linux-gnu/libgpg-error.so.0 /lib/x86_64-linux-gnu/libnss_files.so.2 /lib/x86_64-linux-gnu/libnss_systemd.so.2
2022-03-23 13:21:40.801 [ ALERT]:CRASH: Register dump [23]: 00005575967b8b5f00007f6b19feded000007f6b19fedd87000000000000000061623635386634630000000000000001000000000000000000007f6b0800379800007f6b0800379800007f6b19fee060000055759755001b00007f6b19fee06000000000000000000000000000000008000000000000000000007f6b19fee02000005575966e03410000000000010206002b0000000000330000000000000000000000000000000dfffffffe7ffbba130000000000000000
2022-03-23 13:21:40.801 [ ALERT]:CRASH: STACKTRACE
2022-03-23 13:21:40.805 [ ALERT]:CRASH: 0x5575966e91aa 0x5575964c4000
2022-03-23 13:21:40.808 [ ALERT]:CRASH: 0x7f6b457ee140 0x7f6b457da000
2022-03-23 13:21:40.811 [ ALERT]:CRASH: 0x5575966e0341 0x5575964c4000
2022-03-23 13:21:40.814 [ ALERT]:CRASH: 0x5575966e1979 0x5575964c4000
2022-03-23 13:21:40.817 [ ALERT]:CRASH: 0x5575967b8b9b 0x5575964c4000
2022-03-23 13:21:40.819 [ ALERT]:CRASH: 0x5575967b6422 0x5575964c4000
2022-03-23 13:21:40.821 [ ALERT]:CRASH: 0x5575966a537d 0x5575964c4000
2022-03-23 13:21:40.824 [ ALERT]:CRASH: 0x5575966a29be 0x5575964c4000
2022-03-23 13:21:40.826 [ ALERT]:CRASH: 0x5575967138d8 0x5575964c4000
2022-03-23 13:21:40.828 [ ALERT]:CRASH: 0x55759674dfb0 0x5575964c4000
2022-03-23 13:21:40.830 [ ALERT]:CRASH: 0x5575966b5198 0x5575964c4000
2022-03-23 13:21:40.833 [ ALERT]:CRASH: 0x5575966b6924 0x5575964c4000
2022-03-23 13:21:40.835 [ ALERT]:CRASH: 0x5575966b5a72 0x5575964c4000
2022-03-23 13:21:40.838 [ ALERT]:CRASH: 0x5575966b6ceb 0x5575964c4000
2022-03-23 13:21:40.840 [ ALERT]:CRASH: 0x5575966b6fc6 0x5575964c4000
2022-03-23 13:21:40.842 [ ALERT]:CRASH: 0x5575966ad4cf 0x5575964c4000
2022-03-23 13:21:40.845 [ ALERT]:CRASH: 0x5575966a844a 0x5575964c4000
2022-03-23 13:21:40.847 [ ALERT]:CRASH: 0x7f6b457e2ea7 0x7f6b457da000
2022-03-23 13:21:40.847 [ ALERT]:CRASH: clone+0x3f (/lib/x86_64-linux-gnu/libc.so.6)

TVH version: 4.3-2010~g3b1d7a928
Distro: Debian 11 (Bullseye) Linux 5.10.0-12-amd64 #1 SMP Debian 5.10.103-1 (2022-03-07) x86_64 GNU/Linux
HW: HDHomerun HDHR3-EU Firmware 20210422

Please let me know, if I can provide more information.

Best,
H.