Check for updates doesn't work on version 2022.2.22

I installed update 2 and can confirm a dialog box opens to check for updates, and then displays a message that there are no new updates. It does take several seconds for the dialog box to appear, though.

Another possibility is that the dialog box has fallen off the screen. You should be able to tell if it's opened if you see a white and black Adobe icon in the task bar. If this is the case, you might be able to get it to display by doing the following.

1. Open Robohelp and click Help > Check for Updates. Make sure you don't click on anything else after doing this.

2. Wait for the dialog box to open and, still without clicking on anything, press Alt+Spacebar, M, then any arrow key. Then waggle the mouse and the dialog box should attach to your cursor.

3. Click to drop it whereever you wish.

I think that's the latest version as of 6 June 2023, so using the check wouldn't find anything, although I would have expected a message to say no updates found.

I just realised my copy is update 1 which has the problem (opens creative cloud instead), so I won't be able to confirm that message until I manually download the latest patch, which won't be until tomorrow, as it's late here.

Nope, Patch 2 for RH2022 is the current (June 2023) latest. The issue was in the RH2022.1 version - it couldn't "find" the update, so you had to download it manually.