The phrase "apparent inability" means that someone doesn't seem to have the ability or skill to do something, but it may not be their actual lack of capability. Full definition
But considering the amount of work that has obviously gone into crafting the various gameplay elements it's almost brought to ruin by the games apparent inability to explain.... (wolfsgamingblog.com)
Executives tearing their hair out at the cost of customer support and the apparent inability of the call center to upsell anything. (inc.com)
Trump's apparent inability to do so is one of the primary concerns people have with his leadership style. (inc.com)