Export fails with some items [BUG]

[cobblepot1]

Describe the bug
Some items export as expected. For other items, after selecting "Export items to Roam", nothing happens. The filepicker does not appear.

About the items you are exporting
This happens with items of all types. I tried a bunch for troubleshooting.

Debug output (to access, follow the instructions here: https://www.zotero.org/support/debug_output)
Please paste as a code block

(4)(+0000652): SELECT IA.itemID FROM itemAttachments IA NATURAL JOIN items I LEFT JOIN itemData ID ON (IA.itemID=ID.itemID AND fieldID=1) LEFT JOIN itemDataValues IDV ON (ID.valueID=IDV.valueID) WHERE parentItemID=? AND linkMode NOT IN (3) AND IA.itemID NOT IN (SELECT itemID FROM deletedItems) ORDER BY contentType='application/pdf' DESC, value=? DESC, dateAdded ASC [46636, 'https://doi.org/10.1080/1047840X.2017.1275207']

(3)(+0001221): TypeError: relatedItem.getField is not a function getItemRelatedItems@chrome://zoteroroamexport/content/roamexport.js:109:32 getItemMetadata@chrome://zoteroroamexport/content/roamexport.js:247:29 gatherItemData@chrome://zoteroroamexport/content/roamexport.js:321:24 getAllItemsData@chrome://zoteroroamexport/content/roamexport.js:336:28 exportItems@chrome://zoteroroamexport/content/roamexport.js:346:28

Version of zotero-roam-export:
11.1

Additional context
Zotero 5.0.93, Win 10 x64.