monitor arm keeps tilting down

Alogic DV4 Universal Quad Display Docking Station - for Monitor, Notebook, Desktop PC - Memory Card Reader - SD, microSD - 100 W - USB Type C

Targus Magnetic Privacy Screen for MacBook Pro® 15-inch (2019/2018/2017/late 2016)

Rocstor Premium USB-C Dual Display Portable Dock Multiport Adapter - for Monitor, Tablet, Desktop PC, Notebook - Charging Capability - USB Type C

Targus 4Vu™ Privacy Screen for 11.6 ” Widescreen

Targus ACX003GLZ Mounting Bracket for Docking Station - Black

Kensington Monitor Stand with SmartFit, For 21" Monitors, 11.5" x 9" x 3", Black/Gray, Supports 80 lbs

Macally Tempered Glass Computer Monitor Stand Riser

Yescom VESA Mount Computer Monitor for PC Mobile Cart Adjustable Fits 10"-32" Screen

VisionTek VT4600DL Universal Dual 4K Docking Station 100W Charging (USB-A, USB-C) - for Notebook, Laptop, Desktop, Monitor, Mobile Device

Mobile Pixels Screen Privacy Filter (13.3 In.) in Gray

Plugable USB 3 Universal Dock 2x Monitor

Targus 4Vu™ Privacy Screen for 15.4” Widescreen (16:9)

StarTech.com Thunderbolt 3 Mini Docking Station - Dual Monitor Dock for MacBook and Windows Laptops - Model TB3DKM2HDL

SD4840P USB-C TRIPLE VIDEO DOCK - for Notebook, Monitor - Charging Capability - USB Type C - 3 Displays Supported

Quartet Adjustable Height Desktop Glass Monitor Riser with Dry-Erase Board, 14 x 10.25 x 2.5 to 5.25, White, Supports 100 lb

Alogic MX2 USB-C Dual Display DP Alt. Mode Docking Station - With 65W Power Delivery - for Monitor, Notebook - 100 W - USB Type C

Kensington SD4855P Docking Station - for Notebook, Monitor - 100 W - USB Type C - 4K - 6 x USB Ports - 5 x USB Type-A Ports - USB Type-A - USB Type-C

Yescom Mobile PC Stand Workstation w/ Dual Monitor Mount for Screen Up to 32" Black

Targus Universal Monitor Stand

Brydge Stone CORE Powered Charging Docking Station, 10 Ports, 100W PD, Dual Monitor, 4K60Hz, 8K HDMI, USB-A/C, Windows & MacOS Compatible

Targus 4Vu™ Privacy Screen for 27" Apple Thunderbolt Display, 16:10

Kensington SD4790-MAC EQ USB-C Triple 4K Docking Station for MacBook - for Earset, Smartwatch, Smartphone, Notebook, Monitor - Charging Capability

Targus HyperDrive Next 6 Port USB-C Hub - for Monitor - Charging Capability - Memory Card Reader - SD - USB 3.2 (Gen 2) Type C - 1 Displays Supported