middle-row mc segments: 2 (expect 2)
/app/katex.ts:79
    throw error;
    ^

TypeError: Cannot read properties of undefined (reading 'shift')
    at getVListChildrenAndDepth (/app/src/buildCommon.ts:491:39)
    at makeVList (/app/src/buildCommon.ts:546:31)
    at Object.htmlBuilder [as array] (/app/src/environments/array.ts:674:35)
    at buildGroup (/app/src/buildHTML.ts:271:63)
    at buildExpression (/app/src/buildHTML.ts:69:24)
    at buildHTML (/app/src/buildHTML.ts:329:24)
    at buildTree (/app/src/buildTree.ts:48:35)
    at renderToDomTree (/app/katex.ts:121:25)
    at Object.renderToString (/app/katex.ts:75:20)
    at Object.<anonymous> (/app/mc-smoke-tmp.js:10:11)
    at Module._compile (node:internal/modules/cjs/loader:1781:14)
    at Object.<anonymous> (node:internal/modules/cjs/loader:1913:10)
    at Module.load (node:internal/modules/cjs/loader:1505:32)
    at Function._load (node:internal/modules/cjs/loader:1309:12)
    at wrapModuleLoad (node:internal/modules/cjs/loader:254:19)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:171:5)
    at node:internal/main/run_main_module:36:49

Node.js v22.23.2
