'concealed problem' is a correct and usable phrase in written English.
It is used to describe a problem that is not immediately or outwardly obvious, but is present and needs to be addressed. For example, "The team quickly realized that there was a concealed problem with the project that had led to delays."
Historically, the responsiveness of sales to promotional activity is not very much in dispute, but there are enormous concealed problems in the proper measurement of such effects.
GSK is facing a class-action lawsuit in America from investors who allege it concealed problems with Paxil, an anti-depressant.The failure of a single blockbuster can have serious consequences for a drug firm's finances and reputation.
Responding to the crisis in Flint, Michigan, school officials across the country are testing classroom sinks and cafeteria faucets for lead, trying to uncover any concealed problems and reassure anxious parents.
But he was exasperated by rumors that the bank was concealing problem loans.
She said she participated in modifying more than 500 files to conceal problems.
But this can lead people into a charade, concealing problems that should not be avoided.
But as it turns out, this very laissez-faire attitude toward sex actually conceals problems, and possibly makes them worse.
A detailed House investigation has concluded that high-risk mining techniques — and a clear intent to conceal problems — was at the heart of the Utah disaster.
One of the policy's main objectives is to curb the ability of individual countries to prop up failing banks or conceal problems, ideally improving the stability of the broader euro zone.
Theranos may yet make good on its claims to transform healthcare, but the possibility that it has been concealing problems behind the scrim of private-company secrecy could make investors more skittish or their due diligence more, well, diligent.
