Not working in 2.1.46

[xflashkey]

Problem description

The add -on don't works in 2.1.46

Checklist

Please replace the space inside the brackets with an x if the following items apply:

• [x ] I've restarted Anki to see if it helps
• [ x] I've verified that I use the latest version of the add-on by redownloading it from AnkiWeb
• [x ] I've verified that I use the latest version of Anki by checking at https://apps.ankiweb.net#download
• [x ] I've tried to disable other add-ons to see if there are any interactions present
• [x ] I've checked if anyone else reported this problem before by looking through the issue reports. I also checked to see if there is a section about known issues in the add-on description, documentation, or README.

Information about your Anki set-up

Please fill out the section corresponding with your Anki version:

If you are using Anki 2.1

Please open Anki, go to Help → About, click on "Copy Debug Info", and paste the result between the backticks below (if the button does not appear you are using an older version of Anki 2.1 and will need to update first):

    
    Anki 2.1.46 (94913ec2) Python 3.8.6 Qt 5.14.2 PyQt 5.14.2
    Platform: Windows 10
    Flags: frz=True ao=True sv=2
    Add-ons, last update check: 2021-08-17 17:20:05
    
    
    ===Add-ons (active)===
    (add-on provided name [Add-on folder, installed at, version, is config changed])
    Add Table ['1237621971', 2021-07-10T12:37, 'None', mod]
    Advanced Browser ['874215009', 2021-07-22T16:14, 'None', '']
    Advanced Review Bottom Bar ['1136455830', 2021-08-03T09:27, 'None', mod]
    AnkiDiscord - Discord integration for Anki ['1133851639', 2020-01-13T20:53, 'None', '']
    Ankimote - remote to control Anki from your phone ['149004221', 2021-08-11T11:57, 'None', '']
    Batch Editing ['291119185', 2019-06-02T13:47, 'None', '']
    Browser TableEditor side-by-side horizontal split ['831846358', 2021-05-27T11:47, 'None', '']
    Clickable Tags v20 Anki 2120 support ['1739176371', 2020-03-13T09:25, 'None', '']
    Cloze Overlapper for Anki 21 ['109531687', 2021-01-11T22:12, 'None', '']
    Custom Background Image and Gear Icon ['1210908941', 2021-08-16T13:44, 'None', mod]
    Fastbar- with nightmode support ['46611790', 2021-05-18T19:50, 'None', '']
    Image Editor ['307397307', 2021-06-20T18:24, 'None', mod]
    Image Occlusion Enhanced for Anki 21 alpha ['1374772155', 2020-04-27T21:21, 'None', '']
    Puppy Reinforcement ['1722658993', 2020-03-02T15:23, 'None', mod]
    Quick tagging 21 ['304770511', 2020-02-11T01:17, 'None', '']
    Rebuild All  Empty All for Anki 21 ['1810938259', 2018-07-19T23:40, 'None', '']
    Review Heatmap ['review_heatmap', 2020-04-30T08:23, 'None', '']
    Search and Replace Tags ['138501288', 2017-08-29T13:58, 'None', '']
    True Retention by Card Maturity ['923360400', 2017-08-29T14:00, 'None', '']
    
    ===IDs of active AnkiWeb add-ons===
    109531687 1133851639 1136455830 1210908941 1237621971 1374772155 138501288 149004221 1722658993 1739176371 1810938259 291119185 304770511 307397307 46611790 831846358 874215009 923360400
    
    ===Add-ons (inactive)===
    (add-on provided name [Add-on folder, installed at, version, is config changed])
    Collapsible Fields ['1896168623', 2021-03-07T10:08, 'None', '']

Please fill in details about your operating system (Windows/macOS/Linux, which version):

• OS: WIN 10
• version: 21H1

Please open Anki, go to Tools → Add-ons, take a screenshot of your installed add-ons, and paste it below:

[michalrus]

While waiting for an official release, you can try a pure JavaScript template which is simpler, and works on mobile, too – https://github.com/michalrus/anki-simple-cloze-overlapper