Rovers' hunt for a first league win of the season and first goal from open play goes on after a poor performance in defeat at Port Vale.
Sam Foley atoned for his earlier penalty miss to give Port Vale the lead ten minutes before the break before former loanee Uche Ikpeazu came back to haunt Rovers just after half time. And Byron Moore produced a cheeky backheel as full time approached to round off a terrible day for Rovers.
The scoreline would have been much worse had it not been for goalkeeper Thorsten Stuckmann who saved Foley's spot kick before a string of superb stops in the first half.
But he was let down badly by his off colour team mates who were never in the game.
Port Vale started like a steam train, pressing Rovers high up the pitch and causing all sorts of problems for the visiting defence.
Rovers simply could not settle and found themselves under heavy pressure for the first 15 minutes.
Former Rovers loanee Uche Ikpeazu - a mountain for the hosts - fired well over the bar from just outside the box in the game's first chance before Louis Dodds failed to control a superb cross from Carl Dickinson.
Port Vale were presented with a chance to take the lead on the tenth minute.
The lively Enoch Andoh spun off his marker and darted into the box where he went down softly as Richard Chaplow moved in to challenge.
Foley took the penalty and put it at the perfect height for Thorsten Stuckmann to parry away and clear the danger.
The game settled down from the frantic early pace but Vale were still much the better side. And Rovers were further indebted to their big German goalkeeper for the scores staying level.
Stuckmann superbly denied Dodds twice in the space of a minute. First he stretched across his goal to keep out a shot from the edge of the box. And then he rose to acrobatically tip over with a Dodds header seemingly destined for the top corner.
As the half hour mark approached, Stuckmann was at it again as he went full stretch to keep out a Dickinson free kick from the edge of the box.
It took until the stroke of half time for Rovers to have even the faintest sniff of a chance. Andy Williams did well to control the ball in the box before dinking a cross which Richard Chaplow failed to reach with a header.
Vale finally broke the deadlock on 35 minutes. Dickinson dinked a cross into the box where Foley rose to flick a looping header over Stuckmann and into the far top corner.
Paul Dickov threw on Curtis Main at half time but before the change had chance to take effect, Vale doubled their lead.
Ikpeazu was fed into the box and turned Gary MacKenzie before drilling low past Stuckmann.
Vale could have been further in front moments later when Dodds caught MacKenzie napping only to fire wide from 15 yards.
There were 57 minutes on the clock when Rovers registered their first shot on goal. Williams cut inside from the left with pace and fired on goal but Jak Alnwick had plenty of time to get behind the ball.
Ikpeazu drilled narrowly over from just outside the box as Vale continued to threaten. But the intensity of the game dropped dramatically with the hosts happy to sit on their lead.
Rovers' best chance of the game came 14 minutes from time. Substitute Billy Whitehouse surged forward from midfield and fed Main whose shot was saved with the ball falling to Williams who drilled over the bar.
There will still time for one last effort from the hosts. Ben Purkiss charged to the byline and cut a low cross back with Moore darting in and slotting home with a twisting backheel as Rovers' misery was compounded.
Port Vale: Alnwick, Purkiss, Inniss, Duffy, Dickinson, Moore, Grant, Andoh (Daniel 70), Foley, Dodds, Ikpeazu (Leitch Smith 76)
Subs: Johnson, Birchall, Streete, Brown, Kelly
Rovers: Stuckmann, McCullough, MacKenzie, Butler, Taylor-Sinclair, Coppinger, Wellens, Middleton (Main 46), Chaplow, Evina (Whitehouse 58), Williams.
Subs: Marosi, Lund, Jones, Mandeville, P McKay
Referee: Rob Lewis (Shropshire)
Attendance: 4,775 (357 away)