All network requests to community-* sometimes hang

Description

Seeing this on 5.14 on community-release.
Opening a channel with unreads causes the channel to get stuck at "Loading..." without ever displaying the posts.
I've opened about 10 unread channels and this scenario happened over 50% of the time.

Steps:
1. Log in to community-release
2. Open an unread channel

Observed: Channel stuck at "Loading"
Expected: "Loading..." is shown for very briefly before posts are displayed

QA Test Steps

None

Status

Mana

None

Assignee

Unassigned

QA Assignee

None

Reporter

Ogi Marusic

Epic Link

None

Fix versions

Mattermost Team

Sustained Engineering

Sprint

None

Labels

QA Testing Areas

None

GitHub Issue

None

Components

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