Cannot resize windows after some time

After some time, I am not able to resize windows (CSD windows can be resized!) or using alt + tab anymore or using the alt button to move or resize windows. A reboot does not solve this, my only workaround for this is deleting ~/.config/{dconf,gconf,xfce4}. Then when I restart the session and configure it the way I want to, everything works. But then after watching a video for an hour, the behavior reappears. (Although I do not know if it has something to do with the full screen watch, maybe only waiting causes this).

The behavior when I try to resize: When the cursor hovers over window borders, it changes into the resizing styles but when I click and drag, nothing happens. Maximizing and dragging the windows to screen edges work as expected.

I also tried starting xfwm4 with all available options, nothing worked.

I hope the attached infos are enough, if not pleas ask.

Thank you

xfwm4 -V:

	This is xfwm4 version 4.16.0 (revision c697a54ad) for Xfce 4.16
	Released under the terms of the GNU General Public License.
	Compiled against GTK+-3.24.24, using GTK+-3.24.24.

	Build configuration and supported features:
	- Startup notification support:                 Yes
	- XSync support:                                Yes
	- Render support:                               Yes
	- Xrandr support:                               Yes
	- Xpresent support:                             Yes
	- X Input 2 support:                            No
	- Embedded compositor:                          Yes
	- Epoxy support:                                Yes
	- KDE systray proxy (deprecated):               No

uname -a: Linux callisto 5.10.3-arch1-1 #1 SMP PREEMPT Sun, 27 Dec 2020 10:50:46 +0000 x86_64 GNU/Linux

nvidia-smi:

Sun Jan  3 14:33:48 2021       
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 455.45.01    Driver Version: 455.45.01    CUDA Version: 11.1     |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|                               |                      |               MIG M. |
|===============================+======================+======================|
|   0  GeForce GTX 970     Off  | 00000000:01:00.0  On |                  N/A |
| 37%   34C    P0    49W / 200W |    138MiB /  4041MiB |      1%      Default |
|                               |                      |                  N/A |
+-------------------------------+----------------------+----------------------+
                                                                               
+-----------------------------------------------------------------------------+
| Processes:                                                                  |
|  GPU   GI   CI        PID   Type   Process name                  GPU Memory |
|        ID   ID                                                   Usage      |
|=============================================================================|
|    0   N/A  N/A       443      G   /usr/lib/Xorg                     132MiB |
|    0   N/A  N/A       623      G   xfwm4                               3MiB |
+-----------------------------------------------------------------------------+

dconf dump /:

[apps/guake/general]
display-n=0
display-tab-names=0
gtk-theme-name='Adwaita-dark'
history-size=1000
max-tab-name-length=100
mouse-display=true
open-tab-cwd=true
prompt-on-quit=true
quick-open-command-line='gedit %(file_path)s'
restore-tabs-notify=true
restore-tabs-startup=false
save-tabs-when-changed=true
scroll-keystroke=true
use-default-font=true
use-popup=true
use-scrollbar=true
use-trayicon=true
window-halignment=0
window-height=54
window-losefocus=false
window-refocus=false
window-tabbar=true
window-width=100

[apps/guake/keybindings/local]
close-tab='<Primary><Shift>r'
increase-height='<Primary>Down'
next-tab='<Shift>Right'
previous-tab='<Shift>Left'
rename-current-tab='<Shift>F6'
zoom-in='<Primary>bracketright'
zoom-out='<Primary>bracketleft'

[apps/guake/style/background]
transparency=90

[apps/guake/style/font]
allow-bold=true
palette='#000000000000:#cccc00000000:#4e4e9a9a0606:#c4c4a0a00000:#34346565a4a4:#757550507b7b:#060698209a9a:#d3d3d7d7cfcf:#555557575353:#efef29292929:#8a8ae2e23434:#fcfce9e94f4f:#72729f9fcfcf:#adad7f7fa8a8:#3434e2e2e2e2:#eeeeeeeeecec:#ffffffffffff:#000000000000'
palette-name='Tango'

[org/gnome/desktop/interface]
gtk-theme='Adwaita-dark'

[org/gnome/evolution-data-server]
migrated=true
network-monitor-gio-name=''

[org/gnome/file-roller/listing]
show-path=false

[org/xfce/mousepad/state/window]
fullscreen=false
height=480
maximized=true
width=640