Can't scroll completely down in disassembler output.

[VolkerSchlegel]

Environment

Fri Apr 30 08:46:22 CEST 2021
radare2 5.3.0-git 26220 @ linux-arm-32 git.5.2.1
commit: d9e7ae80ad5850cf43ee4dcbc71ef6eba1a071cb build: 2021-04-30__07:29:28
Linux aarch64

I'm using a Raspberry Pi 3B+ with Raspbian.

Description

When trying to scroll to the bottom of the disassembler output at a certain point the screen goes black for a split second and I further up in the disassembler output

Test

The command I ran to start the webserver:
r2 -c=H crackme_02.exe

The command output:

Metadata Signature: 0xe60 0x10001424a5342 12
.NET Version: v2.0.50727
Number of Metadata Streams: 5
DirectoryAddress: 6c Size: fec
Stream name: MZ\ufffd 4
DirectoryAddress: 1058 Size: f3c
Stream name: MZ\ufffd 4
DirectoryAddress: 73676e69 Size: 0
Stream name: MZ\ufffd 4
DirectoryAddress: 2d0 Size: 535523
Stream name: MZ\ufffd 4
DirectoryAddress: 10 Size: 49554723
Stream name: MZ\ufffd 4
Starting http server...
open http://localhost:9090/
r2 -C http://localhost:9090/cmd/
Opening in existing browser session.

The executable:
crackme_02.exe.zip

A Video of the bug happening:
https://user-images.githubusercontent.com/66200818/116658596-7c41bd80-a990-11eb-94e8-24bab40f5ca6.mp4

I also tried using Midori, same issue.