DENVER – Al-Farouq Aminu was the last player to leave the Trail Blazers locker room Monday, and no matter how long he sat in front of his locker, he still couldn’t find the answer to what has happened to his shot and the Trail Blazers’ once invincible mojo.

Since the Blazers’ magical 13-game winning streak, Aminu’s shot has been decidedly off, and so too has the Blazers’ game. Monday’s 88-82 loss in Denver was the fourth consecutive defeat and lowered Portland to 4-7 since its memorable run through late February and March.

Home court advantage in the first round of the playoffs is now in jeopardy, although a win in Wednesday’s season finale against Utah will secure the third seed and the coveted right to host a best-of-seven series. Lose, and the Blazers could fall to as low as fifth, which would put them on a jet to start the playoffs.

It is an odd feeling for a team that just weeks ago was brimming with confidence and playing with a swagger that caught the attention of even the most elite NBA teams. They are not far off from that brand of basketball, they insist, pointing to their defense and their grit during what has been 10 days of intense, playoff-caliber tune-ups.

The hardest thing for the Blazers to digest is why their shots are not falling. Coach Terry Stotts and every player insist the offense is producing good shots, and the players are taking the right shots.

But, for whatever reason, those shots are off the mark.

It’s one of the things Aminu was pondering as he sat silently in front of his locker, and he smiled uneasily when asked if he can sense a hitch in his shot or a defect in his delivery.

“I wish. I wish,’’ Aminu said. “I wish it was that simple, in the sense it felt off, then it would be easier to correct. Just as a whole team, myself included, the ball hasn’t gone in as much as we would like to.’’

Aminu, who went 3-for-13 from the field including 1-for-8 from three-point range in Denver, echoed what many of his teammates said Monday – the law of averages will someday end this shooting slump.

As often is the case, Aminu has been the bellwether of the Blazers’ aim. Since the streak ended, he is 12-for-59 (20.3 percent) from three-point range. During the Blazers’ run, he went 28-for-64 (43.8 percent) from three.

He is hardly alone.

CJ McCollum continues to shoot a lot, and miss a lot. Pat Connaughton has disappeared. Shabazz Napier has cooled considerably after a breakout season. And Evan Turner continues to struggle if he is not posting. All told, the Blazers from three-point range the last 11 games are shooting 29 percent (101-for-348).

“Right now, we are just waiting for our shots to go down,’’ Turner said.

Aminu points out that the Blazers have been here before. The offense sputtered at season’s start, but found its groove in January as the ball movement and shot-making improved. And even amid their recent three-point clankfest, the Blazers rank in the top 10 in three-point field goal percentage.

It’s why the Blazers were borderline defiant Monday when peppered with questions about their shooting.

“There’s nothing to make of it,’’ Stotts snapped. “As long as we get good looks, I’m fine. That’s part of the game.’’

Added Lillard, when asked why he is optimistic their shot will return: “Because we can shoot the ball. If we were shooting bad because we are taking bad shots, then that would be a problem. But we are getting good looks. We are NBA players and we shoot the ball, that’s what our team does. It’s not a concern. It always comes back.’’

But will it in time to secure home court? And more important, in time for the playoffs?

It is a fitting predicament for a Blazers team that has been unpredictable and streaky throughout the season. Just when you think they are good, they slump. And just when you are convinced they are average, they surge.

Who are the real Blazers? And where is their collective shot? The answers will begin to reveal themselves on Wednesday in a pressure-packed finale.

Lillard, for one, remains confident the shots will fall, and when that happens, the Blazers will once again look like an elite team.

“It happens,’’ he said of the missed shots. “I think everything balances itself out. You have times when you go on stretches when you shoot the ball really well, and then other times you struggle. I think right now, we are happy with the kind of basketball we are playing. The way we are playing is allowing us to get the good shots but those shots aren’t going in. you have to be able to deal with it, and take the good with the bad.’’