Popup ui whiteout

[MonkestationIssueBot]

Reporting client info: Client Information:
BYOND:516.1662
Key:evenodd

Round ID:

10959

Testmerges:

• "Bitrunning is a crime" Glitches, modsuits and balloons
• PDA Alert level
• Domain expansion, CATastrophe!
• Scrap Vehicles 1.5
• [DRAFT] Cult Revamp
• Global AP rebalance (No longer shotgun nerf!)
• Oldstation Updates
• Blueshift MedSec outpost access, tramstation pipes, and roundstart turfs
• Satyr "Living Drunk" Touchups
• Atmos binary device improvements
• Make stack merging much less of a potential lagfest
• Possibly fixes false wall smoothing?
• [DNM] split some procs to allow for better profiling logging

Reproduction:

Every possible ui's (inventory, menus, uplink menu, antag menus, etc... ) are whiteout.
I found that sometimes I could open 1 ui but not 2, or else it shows a whiteout ui. Happens every 10-15 mins, goes away when reconnected but comes back anyway. The whiteout ui is unclickable, unmoveable but most of all there's no "close" button. Reconnect is the only temporary option that last for 10-15mins :( .