bug: uninformative error messages

[WaterSibilantFalling]

An error of some type is reported, but there is no reference to the source file.
Lots of lines are from internal code, but nothing about the error.

"marked is not a function"

OpenAPI Definition error "openapi\another-api.json":
marked is not a function

TypeError: marked is not a function
    at e.value (C:\oldD\PLEXURE\redocly_2022\adp_clone\node_modules\@redocly\reference-docs\lib\redoc-lib\src\se
rvices\MarkdownRenderer.js:1:3480)
    at e.value (C:\oldD\PLEXURE\redocly_2022\adp_clone\node_modules\@redocly\reference-docs\lib\redoc-lib\src\se
rvices\MarkdownRenderer.js:1:3624)
    at Function.value (C:\oldD\PLEXURE\redocly_2022\adp_clone\node_modules\@redocly\reference-docs\lib\redoc-lib
\src\services\MenuBuilder.js:1:891)
    at Function.value (C:\oldD\PLEXURE\redocly_2022\adp_clone\node_modules\@redocly\reference-docs\lib\redoc-lib
\src\services\MenuBuilder.js:1:511)
    at new SpecStore (C:\oldD\PLEXURE\redocly_2022\adp_clone\node_modules\@redocly\reference-docs\lib\redoc-lib\
src\services\SpecStore.js:1:1243)
    at new e (C:\oldD\PLEXURE\redocly_2022\adp_clone\node_modules\@redocly\reference-docs\lib\redoc-lib\src\serv
ices\AppStore.js:1:2212)
    at getDefaultMdComponents
(C:\oldD\PLEXURE\redocly_2022\adp_clone\node_modules\@redocly\reference-docs\lib\services\ProStore.js:1:1062)
    at e.value
(C:\oldD\PLEXURE\redocly_2022\adp_clone\node_modules\@redocly\reference-docs\lib\services\ProStore.js:1:9435)
    at new e
(C:\oldD\PLEXURE\redocly_2022\adp_clone\node_modules\@redocly\reference-docs\lib\services\ProStore.js:1:5332)
    at updateSpecCacheByIdAndPath (C:\oldD\PLEXURE\redocly_2022\adp_clone\node_modules\@redocly\developer-portal
\dist\engine\plugins\gatsby-source-redocly-filesystem\oas\cache.js:1:1467)
    at getOrCreateRedocStoreById (C:\oldD\PLEXURE\redocly_2022\adp_clone\node_modules\@redocly\developer-portal\
dist\engine\plugins\gatsby-source-redocly-filesystem\oas\cache.js:1:759)
    at f (C:\oldD\PLEXURE\redocly_2022\adp_clone\node_modules\@redocly\developer-portal\dist\engine\plugins\gats
by-source-redocly-filesystem\gatsby-node.js:1:3958)
    at Object.exports.onCreateNode (C:\oldD\PLEXURE\redocly_2022\adp_clone\node_modules\@redocly\developer-porta
l\dist\engine\plugins\gatsby-source-redocly-filesystem\gatsby-node.js:1:9789)
    at runAPI (C:\oldD\PLEXURE\redocly_2022\adp_clone\node_modules\gatsby\src\utils\api-runner-node.js:434:16)

 ERROR