Description:
On a spreadsheet with custom buttons that starts different macros, the buttons ”flickers” (see attached video) since upgrade from 6.2.5.2 to 6.3.0.4.
I don’t know if this happens only in Calc.

Steps to Reproduce:
1. Open a spreadsheet with custom buttons on a sheet.
2. Look at your screen.
3. Continue looking, maybe the problem will fix itself. Or maybe not.

Actual Results:
Custom buttons keep flickering, see attached video.

Expected Results:
Custom buttons are stationary on the sheet, see attached video.


Reproducible: Always


User Profile Reset: No


OpenGL enabled: Yes

Additional Info:
I don't know if it's helpful, but here's my system (pasted from a terminal):
$ inxi -Fxz                        
System:
  Host: Manjaro Kernel: 4.14.138-1-MANJARO x86_64 bits: 64 compiler: gcc 
  v: 9.1.0 Desktop: Xfce 4.14.1 Distro: Manjaro Linux 
Machine:
  Type: Desktop System: ASUS product: All Series v: N/A serial: <filter> 
  Mobo: ASUSTeK model: X99-PRO/USB 3.1 v: Rev 1.xx serial: <filter> 
  UEFI [Legacy]: American Megatrends v: 1801 date: 05/15/2015 
Battery:
  Device-1: hidpp_battery_0 
  model: Logitech Wireless Mobile Mouse MX Anywhere 2 
  charge: 100% (should be ignored) status: Discharging 
CPU:
  Topology: 6-Core model: Intel Core i7-5930K bits: 64 type: MT MCP 
  arch: Haswell rev: 2 L2 cache: 15.0 MiB 
  flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx 
  bogomips: 83980 
  Speed: 1200 MHz min/max: 1200/3700 MHz Core speeds (MHz): 1: 1200 2: 1200 
  3: 1416 4: 1200 5: 1199 6: 1199 7: 1215 8: 1200 9: 1200 10: 1204 11: 1200 
  12: 1204 
Graphics:
  Device-1: NVIDIA GM204 [GeForce GTX 970] vendor: Gigabyte driver: nvidia 
  v: 430.40 bus ID: 01:00.0 
  Display: x11 server: X.Org 1.20.5 driver: none FAILED: nvidia tty: N/A 
  OpenGL: renderer: GeForce GTX 970/PCIe/SSE2 v: 4.6.0 NVIDIA 430.40 
  direct render: Yes 
Audio:
  Device-1: Intel C610/X99 series HD Audio vendor: ASUSTeK 
  driver: snd_hda_intel v: kernel bus ID: 00:1b.0 
  Device-2: NVIDIA GM204 High Definition Audio vendor: Gigabyte 
  driver: snd_hda_intel v: kernel bus ID: 01:00.1 
  Sound Server: ALSA v: k4.14.138-1-MANJARO 
Network:
  Device-1: Intel Ethernet I218-V vendor: ASUSTeK driver: e1000e v: 3.2.6-k 
  port: f020 bus ID: 00:19.0 
  IF: eno1 state: up speed: 1000 Mbps duplex: full mac: <filter> 
  Device-2: Broadcom and subsidiaries BCM4352 802.11ac Wireless Network 
  Adapter 
  vendor: ASUSTeK driver: wl v: kernel port: e000 bus ID: 05:00.0 
  IF: wlp5s0 state: dormant mac: <filter> 
Drives:
  Local Storage: total: 1.67 TiB used: 393.54 GiB (23.1%) 
  ID-1: /dev/nvme0n1 vendor: Toshiba model: RD400 size: 476.94 GiB 
  ID-2: /dev/sda vendor: Hitachi model: HDP725032GLA360 size: 298.09 GiB 
  ID-3: /dev/sdb vendor: Samsung model: HD103SJ size: 931.51 GiB 
Partition:
  ID-1: / size: 84.03 GiB used: 41.20 GiB (49.0%) fs: ext4 
  dev: /dev/nvme0n1p2 
  ID-2: /home size: 384.85 GiB used: 351.45 GiB (91.3%) fs: ext4 
  dev: /dev/nvme0n1p3 
  ID-3: swap-1 size: 1.86 GiB used: 918.8 MiB (48.2%) fs: swap 
  dev: /dev/sda10 
Sensors:
  System Temperatures: cpu: 40.0 C mobo: N/A gpu: nvidia temp: 43 C 
  Fan Speeds (RPM): cpu: 0 gpu: nvidia fan: 46% 
Info:
  Processes: 244 Uptime: 5h 06m Memory: 15.57 GiB used: 3.79 GiB (24.3%) 
  Init: systemd Compilers: gcc: 9.1.0 Shell: zsh v: 5.7.1 inxi: 3.0.35 
$ 

OpenGL:
$ glxinfo | grep OpenGL
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: GeForce GTX 970/PCIe/SSE2
OpenGL core profile version string: 4.6.0 NVIDIA 430.40
OpenGL core profile shading language version string: 4.60 NVIDIA
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 4.6.0 NVIDIA 430.40
OpenGL shading language version string: 4.60 NVIDIA
OpenGL context flags: (none)
OpenGL profile mask: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.2 NVIDIA 430.40
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20
OpenGL ES profile extensions:
$

About the user profile:
I didn't reset it, but I reinstalled LibreOffice 6.2.5.2 and the flickering disappeared. Since then I have been upgrading to 6.3.0.4 and downgrading to 6.2.5.2 back and forth several times, same thing every time. Flickers with 6.3, not with 6.2.