Troubleshooting by symptom

Start with the operation that refused and the boundary named by its error. Keep the complete exception or report while diagnosing; an empty result, unavailable surface, and denied operation can mean different things.

Symptom	Check	Next step
Import warns about Python or the GIL	The interpreter selected by your shell or environment	Install and first run
A meld cannot find a named registration	Spellframe, binding name, and whether the target is a human name or explicit ID	Address law
A second bind or conjure is refused	Existing registration and the one-root-per-book rule	Errors
Identical bindings collide across worlds	Process-wide spell identity; the frame is not part of that distinction	World boundaries
Constructor configuration seems ignored	Bind parameters versus meld overrides or a configured factory	Flat overrides
Configuration edits fail	Defaults/set-once properties and whether conjure froze the object	Configuration
A child scope retains memory	The actual owner and whether its cleanup ran	Scopes that end
A linked borrower cannot resolve a spell	Both roots exist, the borrower pulled from the actual owner, and permissions fit	Links and permissions
A late-bound constructor still has a descriptor	Complete provider → consumer → link → pull → meld for each edge	Connected systems
A cluster reports no creations store	Linking, membership, and leader election order	Clusters
An override is refused or affects later calls	Match count/path grammar and the target's lifetime	Deep overrides
A Rift cannot attach to a frame	Observer policy, frame posture, descriptor publication, and target budget	Agent room setup
Viewer fields seem missing	Selected frame and visible versus withheld sections	Viewer reads
Codegen returns a rejected result	Validation issues, execution errors, and the explicit target frame	Codegen
Research appears unavailable	Root activation, custody setup, and the selected record/set	Research
A clean flush has no remote copy	Store wiring, failure counters, and remote delivery policy	External storage
Restore refuses before building	Complete chain, source drift, collisions, and the admission report	Restore
A research join refuses	Anchor, receiver tip, and whether a supersede is actually intended	Governed change

The public error reference describes catchable exception types. Use the complete examples to compare your setup with a small runnable case before changing a larger application.