LG G6 won't enter twrp

[Name1t]

• [x] I am running an official build of TWRP, downloaded from https://twrp.me/Devices/
• [x] I am running the latest version of TWRP
• [x] I have read the FAQ (https://twrp.me/FAQ/)
• [x] I have searched for my issue and it does not already exist

Device codename: TWRP version:

WHAT STEPS WILL REPRODUCE THE PROBLEM?

After installing twrp via fastboot and entering 'fastboot reboot recovery' command, the phone reboot normally, without entering twrp. Tried to access twrp by using the button combination, but after I press 'yes' when i'm asked if I want to reset the phone, nothing happens, the phone just reboot normally, but without erasing my data.

WHAT IS THE EXPECTED RESULT?

Enter twrp

WHAT HAPPENS INSTEAD?

The phone boot normally

ADDITIONAL INFORMATION

The phone is running Android 9, V30b-EUR-XX version.

/tmp/recovery.log: dmesg: <!-- Link here --

[radiantraptor]

I have the same problem with the TWRP versions twrp-3.4.0-0-h870.img and twrp-3.4.0-1-h870.img for the LG G6, the version 3.3.1-0 is working fine.