Uncaught TypeError: Cannot read property 'substr' of null

[iffy]

Version: 0.58.0-dev-f96461ea (node: v12.4.0)
OS: win32 10.0.18362 x64
Lang: en English
Loc: buckets://budget-1/budget/index.html#/y2020m11/buckets

[2020-11-13 19:43:39.656] [info] (budget.r) window.location.hash = #/y2020m11/buckets
[2020-11-13 19:43:39.685] [error] (budget.r) Uncaught error: Uncaught TypeError: Cannot read property 'substr' of null
[2020-11-13 19:43:39.685] [error] (budget.r) Filename: C:\Program Files\Buckets Beta\resources\app.asar\node_modules\buckets-core\dist\time.js line 74 col 46
[2020-11-13 19:43:39.687] [error] (budget.r) TypeError: Cannot read property 'substr' of null
    at Function.parse (C:\Program Files\Buckets Beta\resources\app.asar\node_modules\buckets-core\dist\time.js:74:46)
    at Object.computeBucketData (C:\Program Files\Buckets Beta\resources\app.asar\node_modules\buckets-core\dist\models\bucket.js:427:83)
    at C:\Program Files\Buckets Beta\resources\app.asar\src\budget\buckets.js:211:41
    at Array.forEach (<anonymous>)
    at BucketsPage.render (C:\Program Files\Buckets Beta\resources\app.asar\src\budget\buckets.js:206:18)
    at finishClassComponent (C:\Program Files\Buckets Beta\resources\app.asar\node_modules\react-dom\cjs\react-dom.development.js:8377:33)
    at updateClassComponent (C:\Program Files\Buckets Beta\resources\app.asar\node_modules\react-dom\cjs\react-dom.development.js:8345:12)
    at beginWork (C:\Program Files\Buckets Beta\resources\app.asar\node_modules\react-dom\cjs\react-dom.development.js:8966:16)
    at performUnitOfWork (C:\Program Files\Buckets Beta\resources\app.asar\node_modules\react-dom\cjs\react-dom.development.js:11798:16)
    at workLoop (C:\Program Files\Buckets Beta\resources\app.asar\node_modules\react-dom\cjs\react-dom.development.js:11827:26)
    at HTMLUnknownElement.callCallback (C:\Program Files\Buckets Beta\resources\app.asar\node_modules\react-dom\cjs\react-dom.development.js:104:14)
    at Object.invokeGuardedCallbackDev (C:\Program Files\Buckets Beta\resources\app.asar\node_modules\react-dom\cjs\react-dom.development.js:142:16)
    at invokeGuardedCallback (C:\Program Files\Buckets Beta\resources\app.asar\node_modules\react-dom\cjs\react-dom.development.js:191:29)
    at replayUnitOfWork (C:\Program Files\Buckets Beta\resources\app.asar\node_modules\react-dom\cjs\react-dom.development.js:11302:7)
    at renderRoot (C:\Program Files\Buckets Beta\resources\app.asar\node_modules\react-dom\cjs\react-dom.development.js:11869:11)
    at performWorkOnRoot (C:\Program Files\Buckets Beta\resources\app.asar\node_modules\react-dom\cjs\react-dom.development.js:12422:24)
    at performWork (C:\Program Files\Buckets Beta\resources\app.asar\node_modules\react-dom\cjs\react-dom.development.js:12343:9)
    at performSyncWork (C:\Program Files\Buckets Beta\resources\app.asar\node_modules\react-dom\cjs\react-dom.development.js:12320:5)
    at requestWork (C:\Program Files\Buckets Beta\resources\app.asar\node_modules\react-dom\cjs\react-dom.development.js:12220:7)
    at scheduleWorkImpl (C:\Program Files\Buckets Beta\resources\app.asar\node_modules\react-dom\cjs\react-dom.development.js:12095:13)
    at scheduleWork (C:\Program Files\Buckets Beta\resources\app.asar\node_modules\react-dom\cjs\react-dom.development.js:12055:12)
    at scheduleRootUpdate (C:\Program Files\Buckets Beta\resources\app.asar\node_modules\react-dom\cjs\react-dom.development.js:12683:5)

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Included in v0.58.0 release (AUTOMATED COMMENT)