Flipper (Flipper@connerdev): if enabled in cinnamon 5.4.10 workspaces switch is broken

[thegreatyellow67]

* Extension version/Build date: Updated on 2022-06-03 14:34:04

* Cinnamon version: 5.4.10

* Distribution: Linux Mint LMDE5

* Graphics hardware: Nvidia GT1030, driver NVIDIA Proprietary Driver Version: 470.129.06

* Snippet of ~/.xsession-errors:

(cinnamon:1786): Gjs-CRITICAL **: 18:55:10.527: JS ERROR: TypeError: binding is undefined
_init@/home/giagio/.local/share/cinnamon/extensions/Flipper@connerdev/extension.js:38:42
Flipper@/home/giagio/.local/share/cinnamon/extensions/Flipper@connerdev/extension.js:26:16
onSwitch@/home/giagio/.local/share/cinnamon/extensions/Flipper@connerdev/extension.js5

* Issue: if extension is enabled, when I digit Ctrl + Alt + Left (or Right) workspaces don't switch anymore, only if I disable extension.

* Steps to reproduce: enable Flipper extension in Settings > Extensions, then try to switch with Ctrl + Alt + Left or Ctrl + Alt + Right.

* Expected behaviour: visual extension effect switching from workspace to another (Cube, Deck, Flip, etc) runs correctly (worked in my previous LMDE5 and cinnamon 5.2.7).

[thegreatyellow67]

Even if today flipper was updated (Updated on 2022-08-06 16:02:59), is still broken. Is not possible to change from one workspace to another. .xsession-errors snapshot:

(cinnamon:6223): Gjs-CRITICAL **: 09:25:13.727: JS ERROR: TypeError: binding is undefined
_init@/home/giagio/.local/share/cinnamon/extensions/Flipper@connerdev/extension.js:38:42
Flipper@/home/giagio/.local/share/cinnamon/extensions/Flipper@connerdev/extension.js:26:16
onSwitch@/home/giagio/.local/share/cinnamon/extensions/Flipper@connerdev/extension.js5

[karlchen]

Note, please:

The very similar problem report submitted by user keremispirli, which however affects Cinnamon on Linux Mint 21, can be found in this thread over there:
DesktopCube (DesktopCube@yare): if enabled in cinnamon 5.4.10 workspaces switch is broken.

Threads have been split, because Linux Mint (Ubuntu based) and LMDE 5 (Debian based) each have got their own sub-forums. Splitting has been done for formal reasons only. The underlying issue indeed seems to be Cinnamon specific and very likely to have the same root cause.