temperature block shows wrong temperature

[robaki]

Expected behavior

the temperature block should monitor the CPU temperature

Actual behavior

Randomly the block starts to show 16.8C and doesn't change. It is clearly wrong since the temperature is lower than my room temperature and should vary with CPU usage. It is not a stuck display, the temperature script shows:

robaki@robaki-B550M-DS3H:~/.config/i3blocks/temperature$ ./temperature 
16.8°C
16.8°C

i3blocks config relevant to blocklet(s)

# Temperature
#
# Support multiple chips, though lm-sensors.
# The script may be called with -w and -c switches to specify thresholds,
# see the script for details.
[temperature]
label=
interval=10

Output of blocklet(s) when run from command line

robaki@robaki-B550M-DS3H:~/.config/i3blocks/temperature$ ./temperature 
16.8°C
16.8°C

Output of any relevant other commands that might help diagnostics

robaki@robaki-B550M-DS3H:~/.config/i3blocks$ lscpu
Architecture:                    x86_64
CPU op-mode(s):                  32-bit, 64-bit
Byte Order:                      Little Endian
Address sizes:                   43 bits physical, 48 bits virtual
CPU(s):                          16
On-line CPU(s) list:             0-15
Thread(s) per core:              2
Core(s) per socket:              8
Socket(s):                       1
NUMA node(s):                    1
Vendor ID:                       AuthenticAMD
CPU family:                      23
Model:                           113
Model name:                      AMD Ryzen 7 3800X 8-Core Processor
Stepping:                        0
Frequency boost:                 enabled
CPU MHz:                         2195.462
CPU max MHz:                     3900,0000
CPU min MHz:                     2200,0000
BogoMIPS:                        7785.74
Virtualisation:                  AMD-V
L1d cache:                       256 KiB
L1i cache:                       256 KiB
L2 cache:                        4 MiB
L3 cache:                        32 MiB
NUMA node0 CPU(s):               0-15
Vulnerability Itlb multihit:     Not affected
Vulnerability L1tf:              Not affected
Vulnerability Mds:               Not affected
Vulnerability Meltdown:          Not affected
Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp
Vulnerability Spectre v1:        Mitigation; usercopy/swapgs barriers and __user pointer sanitization
Vulnerability Spectre v2:        Mitigation; Full AMD retpoline, IBPB conditional, STIBP conditional, RSB filling
Vulnerability Srbds:             Not affected
Vulnerability Tsx async abort:   Not affected
Flags:                           fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb
                                  rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe
                                  popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt tce
                                  topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb cat_l3 cdp_l3 hw_pstate sme ssbd mba sev ibpb stibp vmmcall fsgsbase bmi1
                                  avx2 smep bmi2 cqm rdt_a rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm
                                 _mbm_local clzero irperf xsaveerptr wbnoinvd arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilte
                                 r pfthreshold avic v_vmsave_vmload vgif umip rdpid overflow_recov succor smca