The issue was with how glow effects were being toggled during certain events, if your team had something happen to your intelligence when you were speaking, a lingering visible intelligence could be shown until you stopped talking. Similar situation during the end of a round for people with donator sprites.
Intelligence items had their player glows disabled in all cases. This ideally is only meant to happen during neutral CTF games because the intelligence would show visible lines to all players regardless of what team it was being carried by. In a normal case, only the teammates of the person carrying an intelligence can see their outline. Now, glows are only disabled in Neutral CTF games unless otherwise stated.