Every diamond painter runs into problems. Most are minor and fixable in minutes; a few are serious enough to threaten the project. Almost none of them are your fault — the medium has predictable failure points, and knowing them in advance turns a bad afternoon into a five-minute fix.

This is a straightforward troubleshooting guide, organised by the problem you are actually having.

Drills will not stick to the canvas

Usually caused by: dried adhesive, dust on the surface, peeling the protective film too early, or handling the canvas with oily fingers.

Fix it:

1. Peel the protective film only over the area you are actively working on. This is the most common cause and the easiest habit to fix.
2. Lift dust and lint with Blu-Tack pressed gently onto the surface, or a lint roller.
3. Where adhesive has genuinely dried, apply a thin layer of craft glue or mod podge with a small brush and let it go tacky before placing drills.
4. Store the canvas flat and cool. Heat softens adhesive until it stops gripping.

If adhesion is poor across the whole canvas on a new kit, that is a manufacturing fault. Contact the seller with photographs.

Drills lift off after you finish

Usually caused by: incomplete bonding, rolling or bending the piece too soon, or heat exposure.

Fix it:

• Press the whole surface firmly with a roller or the flat of your hand, then leave it flat for a day or two.
• Re-seat any lifted drills with a tiny dot of craft glue, pressed and left to dry.
• Seal the surface if the piece will be unframed or handled.
• Never store a finished canvas rolled tightly.

See How Can You Preserve a Diamond Painting? for sealing done properly.

Drills are clumping together

Usually caused by: static, manufacturing residue, or contamination.

Fix it:

• Wash drills in a sieve with lukewarm water and a drop of washing-up liquid, then dry thoroughly. This removes mould release and is the most effective fix.
• Rub them with a fabric softener sheet or keep one in the container.
• Shake the tray to spread drills rather than stirring with your pen.
• Avoid very dry, heated rooms where static is worst.

The pen will not pick up drills

Usually caused by: depleted or hardened wax, or a dirty tip.

Fix it:

• Press the tip firmly into fresh wax and twist. Use less than you think.
• Wipe the tip clean on scrap paper.
• Replace the wax entirely if it has gone crumbly — it is a consumable.
• Keep a second pen loaded so you can swap instead of stopping.
• Use fine tweezers for isolated or awkward placements.

I placed drills in the wrong squares

Usually caused by: poor lighting, faint symbols, or losing your place.

Fix it:

• Lift the drills with fine tweezers. The adhesive is forgiving — misplaced drills come off cleanly if you catch them reasonably soon.
• Improve your lighting. A daylight lamp is the cheapest meaningful upgrade in the hobby.
• Magnify if the symbols are hard to read.
• Lightly grid the canvas with a washable pen so drift is obvious.
• Work in small, complete sections rather than jumping around.

I used the wrong colour over a whole area

Fix it: this is recoverable, but do not leave it.

1. Work out how much is affected before starting.
2. Lift drills with tweezers, working from the edge of the error inward.
3. If adhesive has been disturbed, apply a thin layer of craft glue and let it go tacky.
4. Re-place with the correct colour.

It is tedious but straightforward. The mistake is always smaller than it feels in the moment.

A colour bag is missing or short

Fix it:

• Count all bags against the legend when the kit arrives, not mid-project. See What Should I Do When My Diamond Painting Kit Comes?
• Photograph the contents and contact the seller. Most will send replacements.
• If you cannot wait, substitute the closest colour from a stash and note it — the difference is often invisible at normal viewing distance.
• Check whether the bag is genuinely short or simply mislabelled. Compare a drill against the legend swatch.

The canvas arrived creased or folded

Fix it:

• Lay it flat, print side up, with heavy books along the creases for several hours or overnight.
• Do not iron it. Heat damages the adhesive and distorts the print.
• Gentle reverse rolling can speed it up, but patience works better.
• A hard crease will remain faintly visible. Mounting the canvas to foam board helps flatten it and makes it far less noticeable.

Rolled canvases crease less than folded ones — worth considering on your next order.

The canvas will not stay flat while I work

Fix it: mount it. Tape or lightly glue the canvas to a foam board 2–3cm larger on each side. A rigid surface solves curling, makes placement easier, and lets you move and store the project safely.

Full instructions in How To Frame Your Diamond Painting Kit With Foam Boards!

Symbols are too small or faint to read

Fix it:

• Better lighting first — this solves most of it.
• A magnifying lamp or headset magnifier.
• Photograph the legend and enlarge it on your phone or tablet as a reference.
• On future kits, choose designs with bolder outlines and larger symbols.

The drills look different from the chart

Usually caused by: lighting, or a genuinely mislabelled bag.

Fix it:

• Compare in daylight. Indoor lighting distorts colour significantly.
• If the difference is real and large, photograph the drill against the legend swatch and contact the seller.
• Small colour variation between batches is normal and usually invisible once placed.

The kit arrived damaged or wrong

Fix it:

• Photograph everything, including the packaging, before opening further.
• Contact the seller immediately with the photographs. Do not start the project — starting can void your claim.
• If the seller does not respond, open a dispute through the marketplace's buyer protection.
• For direct purchases, a chargeback is available as a last resort.

The project is taking far longer than expected

Usually caused by: unrealistic expectations rather than anything wrong.

Fix it:

• Accept realistic timescales. A 40×50cm canvas is typically 20–40 hours. A 70×90cm is 60–100+ hours.
• Break it into sections and treat each as a session, rather than tracking the whole project.
• Photograph progress weekly. It makes the scale of what you have done visible.
• Work one colour at a time on repetitive designs — it is often substantially faster.

Most abandoned projects are abandoned because the painter underestimated the time, not because of any technical failure.

I have lost motivation halfway through

Usually caused by: the middle of a large project, where the beginning excitement has worn off and the end is not yet visible.

Fix it:

• Switch to a small, quick project and come back. A simple mandala or a small kit restores momentum.
• Set a small, specific goal — "finish this ring," "complete this colour" — rather than "work on the project."
• Paint alongside someone, in person or via a "paint with me" video.
• Move the project somewhere visible. Out of sight genuinely means out of mind.

Quick reference

Problem	First thing to try
Drills won't stick	Peel film only as you work; clean the surface
Drills lifting later	Press firmly, rest flat, then seal
Drills clumping	Wash and dry them, add a dryer sheet
Pen won't pick up	Refresh or replace the wax
Wrong squares	Tweezers, better light, magnification
Wrong colour area	Tweezers from the edge inward, then re-glue
Missing colour	Photograph, contact seller, don't start
Creased canvas	Weigh it flat overnight, never iron
Won't stay flat	Mount it to foam board
Symbols unreadable	Better light, then magnification
Took too long	Normal. Break it into sections
Lost motivation	Small project to restart momentum

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Related reading: Diamond Drills Getting Stuck Together & Lifting Off Of The Canvas? goes deeper on adhesion, Diamond Painting Tips & Tricks & How to Bring Your Diamond Painting Kit Back to Life From A Mistake covers recovering from errors, and More Weird Diamond Painting Tricks & Tips That Work! has the habits that prevent most of this list.