P: Unable to relaunch after File>New Catalog/Switching catalogs, or relaunching with certain plugins

I had the same symptoms Lr Super Key plugin.
They just released an upgrade and problem is solved.
Regards

I have tried all the other suggestions that I can find in the community but still cannot get LRC to open as a normal application.  I'm not that computer savy to figure out some of the suggestions.  I am using LRC on a windows computer running Windows 11 and this problem just started about 5 days ago when LRC said it had a problem and had to close.  LRC was on the latest update at that time.  I would really like to talk with a Adobe tech. 

@Ralf273099888q21, @J_C1197, see the pinned reply at the top for a workaround:

https://community.adobe.com/t5/lightroom-classic-bugs/p-unable-to-relaunch-after-file-gt-new-catalog-switching-catalogs-or-relaunching-with-certain/idc-p/15457751#M62592

After starting the Computer i can open Lightroom Classic 14.5 correctly. When i close the Program and try to restart, nothing happens. In the Task-Manager i can see that there are two LRC tasks in the background process (one after closing the program and the second for  the restart). When i quit them in de Taskmanger it starts properly. Under Version 14.4  i had no problems. My System works with Win 11 pro, NVIDA RTX 3060 with the newest GPU drivers.

I tried some workaround as recommended in the past where this issue was also in discussion.

- Update GPU Drivers

- Turned off the GPU-support/Acceleration in LR 14.5

- Using backup catalogues

- Settings resetted

- LRC new installed

Unfortunately with no success

Disabling Log Options Plug In worked for me.  Lightroom not re-starts after close like it it did in the past.  I am on Windows 11 PC.  Thanks you Rikk Flohr!

@JBedfordPhoto: "This wasn't the first time Logitech's god-awful plugin (all their software is terrible, really, no hyperbole) has caused interruptions to LRC."

Though Logioptions is indeed a bad plugin, in this case, the problem is caused by a bug in LR 14.5's shutdown that affects other plugins that have sockets open to external helper apps (e.g. Tourbox and Midi2lr).

This too was the solution for me - disabling Logitech plugin. 

This wasn't the first time Logitech's god-awful plugin (all their software is terrible, really, no hyperbole) has caused interruptions to LRC. 

Thanks Rikk Flohr.  The issue was resolved when I followed your advice regarding disabling the LogiOptions Plugin (For those Windows users on the thread, try going to File>Plugin Manager and disabling the LogiOptions Plugin. On my system, that cured the issue.  Other posters in the thread have identif).  All good

Windows error: Auf das angegebene Gerät bzw den Pfad oder die Datei kann nicht zugegriffen werden, Sie verfügen ggf. nicht über ausreichende Berechtigungen, um auf das Element zugreifenzu können.