cerebro Now Working On Ubuntu 18.04?

[x] I am on the latest Cerebro.app version
[x] I have searched the issues of this repo and believe that this is not a duplicate

**Linux Lamba-PC 4.15.0-54-generic #58-Ubuntu SMP Mon Jun 24 10:55:24 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux **:
cerebro-0.3.2-x86_64.AppImage:
Can't open devtools as Cerebro is not working (See above how to open it):

If this is helpful:

lamba@Lamba-PC:~/.local/share/applications$ ps -ax | grep "cereb"
 9004 tty2     Sl+    0:09 /tmp/.mount_ICGPWU/usr/bin/cerebro
 9009 ?        Ssl    0:06 /home/lamba/cerebro-0.3.1-x86_64.AppImage
 9036 tty2     S+     0:00 /tmp/.mount_ICGPWU/usr/bin/cerebro --type=zygote --no-sandbox
 9080 tty2     Sl+    0:04 /tmp/.mount_ICGPWU/usr/bin/cerebro --type=gpu-process --no-sandbox --supports-dual-gpus=false --gpu-driver-bug-workarounds=7,23,71 --gpu-vendor-id=0x10de --gpu-device-id=0x1c8c --gpu-driver-vendor=NVIDIA --gpu-driver-version=430.26 --gpu-driver-date --gpu-secondary-vendor-ids=0x8086 --gpu-secondary-device-ids=0x591b --service-request-channel-token=F6BEC1044C3BCB2B3CE86BEE575BE62C --v8-natives-passed-by-fd --v8-snapshot-passed-by-fd
 9091 tty2     Sl+    0:10 /tmp/.mount_ICGPWU/usr/bin/cerebro --type=renderer --no-sandbox --primordial-pipe-token=4E7892E44C013E05F5CD7F626A4B4D32 --lang=en-US --app-path=/tmp/.mount_ICGPWU/usr/bin/resources/app.asar --node-integration=true --hidden-page --enable-pinch --num-raster-threads=4 --enable-main-frame-before-activation --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553 --disable-accelerated-video-decode --service-request-channel-token=4E7892E44C013E05F5CD7F626A4B4D32 --renderer-client-id=4 --v8-natives-passed-by-fd --v8-snapshot-passed-by-fd
 9093 tty2     Sl+    0:01 /tmp/.mount_ICGPWU/usr/bin/cerebro --type=renderer --no-sandbox --primordial-pipe-token=6083E6D2AF13C725A99FB56EB7A24D93 --lang=en-US --app-path=/tmp/.mount_ICGPWU/usr/bin/resources/app.asar --node-integration=true --hidden-page --enable-pinch --num-raster-threads=4 --enable-main-frame-before-activation --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553 --disable-accelerated-video-decode --service-request-channel-token=6083E6D2AF13C725A99FB56EB7A24D93 --renderer-client-id=6 --v8-natives-passed-by-fd --v8-snapshot-passed-by-fd
11093 tty2     Sl+    0:03 nautilus /home/lamba/Downloads/cerebro-0.3.2-x86_64.AppImage
12052 pts/4    S+     0:00 grep --color=auto cereb

Issue

I have downloaded the latest version of Cerebro from the releases, then chmod +x it, then ran it. It got installed.

First of all, the application does not auto-start on startup. I have to run it manually. Then, when I press Ctrl + Space, I do get the search popup, but nothing happens when I start typing. The auto-complete works, so if I type "C", I get "Cerebro Settings" as autocomplete, but nothing else.

What I noticed, is that if I Alt+Tab, or click just underneath the popup, a transparent box appears, as shown in the image below: