Compatibility Issue Between ldapjs Library and FreeRADIUS

Question

I've set up an LDAP server in Node.js using the ldapjs library, and it responds perfectly when using 'ldapsearch' as a tool. I attempted to configure FreeRADIUS to contact the LDAP server, the bind succeeds upon startup, and FreeRADIUS is ready to accept requests. Unfortunately, when I try with 'radtest,' the LDAP server crashes with the following error:

node:events:497
      throw er; // Unhandled 'error' event
      ^
VError: Parser error for 192.168.0.108:57296: attribute must be a valid string
    at Parser.<anonymous> (/home/node/app/node_modules/ldapjs/lib/server.js:459:26)
    at Parser.emit (node:events:519:28)
    at Parser.write (/home/node/app/node_modules/ldapjs/lib/messages/parser.js:131:10)
    at Socket.<anonymous> (/home/node/app/node_modules/ldapjs/lib/server.js:474:19)
    at Socket.emit (node:events:519:28)
    at addChunk (node:internal/streams/readable:559:12)
    at readableAddChunkPushByteMode (node:internal/streams/readable:510:3)
    at Readable.push (node:internal/streams/readable:390:5)
    at TCP.onStreamRead (node:internal/stream_base_commons:190:23)
Emitted 'error' event on Server instance at:
    at Parser.<anonymous> (/home/node/app/node_modules/ldapjs/lib/server.js:459:12)
    at Parser.emit (node:events:519:28)
    [... lines matching original stack trace ...]
    at TCP.onStreamRead (node:internal/stream_base_commons:190:23) {
  jse_shortmsg: 'Parser error for 192.168.0.108:57296',
  jse_cause: Error: attribute must be a valid string
      at set attributes [as attributes] (/home/node/app/node_modules/@ldapjs/messages/lib/messages/search-request.js:212:15)
      at new SearchRequest (/home/node/app/node_modules/@ldapjs/messages/lib/messages/search-request.js:158:21)
      at parseToMessage (/home/node/app/node_modules/@ldapjs/messages/lib/parse-to-message.js:61:19)
      at LdapMessage.parse (/home/node/app/node_modules/@ldapjs/messages/lib/ldap-message.js:262:41)
      at Parser.write (/home/node/app/node_modules/ldapjs/lib/messages/parser.js:117:38)
      at Socket.<anonymous> (/home/node/app/node_modules/ldapjs/lib/server.js:474:19)
      at Socket.emit (node:events:519:28)
      at addChunk (node:internal/streams/readable:559:12)
      at readableAddChunkPushByteMode (node:internal/streams/readable:510:3)
      at Readable.push (node:internal/streams/readable:390:5),
  jse_info: {},
  cause: [Function: ve_cause]
}

Debugging, I noticed that it only calls the bind function (with correct DN and password, as when I use ldapsearch), which I've written like this: server.bind(baseDn, async function (req, res, next) {. So, I tried to print req, res, and next to see the differences between the call with ldapsearch and the one coming from FreeRADIUS. Using 'diff,' I observed the variances and I don't see anything strange:

╰─❯ diff correct.txt wrong.txt 
93c93
<    _peername: { address: '192.168.0.108', family: 'IPv4', port: 50162 },
---
>    _peername: { address: '192.168.0.108', family: 'IPv4', port: 57296 },
95c95
<      id: '192.168.0.108:50162',
---
>      id: '192.168.0.108:57296',
109c109
<    [Symbol(async_id_symbol)]: 283,
---
>    [Symbol(async_id_symbol)]: 323,
128,129c128,129
<  logId: '192.168.0.108:50162::1',
<  startTime: 1707298757856,
---
>  logId: '192.168.0.108:57296::1',
>  startTime: 1707298790212,
221c221
<    _peername: { address: '192.168.0.108', family: 'IPv4', port: 50162 },
---
>    _peername: { address: '192.168.0.108', family: 'IPv4', port: 57296 },
223c223
<      id: '192.168.0.108:50162',
---
>      id: '192.168.0.108:57296',
237c237
<    [Symbol(async_id_symbol)]: 283,
---
>    [Symbol(async_id_symbol)]: 323,
256c256
<  logId: '192.168.0.108:50162::1',
---
>  logId: '192.168.0.108:57296::1',

Any advice? Did I misconfigure something, or is it a bug?

Thank you in advance.