The next button & today button not working on Anki 2.1.15

[sasank89]

Problem description

Installation was smooth. On the timeline, the back button goes back a year. Clicking on today button or the next year button does not have any action. The timeline remains on where it is. The back button to go to the previous year works fine.

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
• [] My issue disappears when I hold shift while starting Anki.
• [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

Anki 2.1.15 (442df9d6) Python 3.6.7 Qt 5.12.1 PyQt 5.11.3
Platform: Mac 10.15.1
Flags: frz=True ao=True sv=1

Add-ons:

Image Occlusion Enhanced for Anki 21 alpha
Night Mode
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Please fill in details about your operating system (Windows/macOS/Linux, which version):

• OS: MacOS
• version:Catalina

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

[sasank89]

UPDATE: not sure what exactly had went on. But today, I rechecked it and it was working fine. No changes since then.

[danieltomasz]

I have the same behaviour on Anki 2.1.20