hyperion.ng: hyperiond crashed with a segfault, but I could not reproduce it

• I confirm that this is an issue rather than a question.

Bug report

For what it’s worth, Up on saving LED Layout (Frame) I changed all non advanced availabe parameters, hyperiond crashed with dmesg

[146030.413167] Effect[6315]: segfault at a9 ip 00007f732a1d3734 sp 00007f731ce439f8 error 4 in libpython3.5m.so.1.0[7f7329feb000+3c5000]
[146030.413174] Code: 48 89 53 f0 48 89 4d 08 48 89 0a 48 89 6b e8 48 83 c8 02 48 89 43 f8 48 83 c4 08 31 c0 5b 5d c3 66 0f 1f 44 00 00 48 8b 47 08 <f6> 80 a9 00 00 00 40 74 33 53 48 8b 80 48 01 00 00 48 89 fb 48 85

I used alpha5

Steps to reproduce

Tryed to to the same, but it didn’t happen

• compile alpha 5 with docker_compile.sh
• install
• configure LED
• save > crash

What is expected?

Shouldn’t segfault I guess

What is actually happening?

Segfaults

System

Hyperion Server:

• Build: master (Paulchen-Panther-2e83c58/e358792-1587148622)
• Build time: Apr 18 2020 07:29:11
• Git Remote: https://github.com/hyperion-project/hyperion.ng.git
• Version: 2.0.0-alpha.5
• UI Lang: auto (BrowserLang: en-US)
• UI Access: default
• Avail Capt: v4l2,framebuffer,x11,qt

Hyperion Server OS:

• Distribution: Ubuntu 19.10
• Arch: x86_64
• Kernel: linux (5.3.0-46-generic (WS: 64))
• Browser: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0