Papadopoulos T., could you advise if this affects only one project or a number of projects. Better still, can you create a new project and see if WX5 is stable? You may also like to check there are no optional objects you are using that are now in need of update.

If still unstable I suggest you use the control panel to remove WX5 from your PC, then go to your profile (top right this page), select download and then do a full (clean) install of WX5.

I can provide you with v2021.5.6 (or earlier), but this will only be of value to you if you have an iwzip file (step 5, export project) created in the earlier version. Since you have opened your project in v2021.5.7 it can no longer be opened in any earlier version.

With a new project it has not caused me any problems so far. I have been working on it for about 1 hour already. Plugins are all up to date.

In the other project which is an e-shop, every time I am in the shopping cart it closes after 5 minutes without error message.

Give me please the earlier version. I uninstall the software and I make a fresh installation.

I will be back here with new information after the clean install of the new version. I will import iwzip files from all projects. I will work on them and I will answer you about the result.

In case it is of value to you, you can download v2021.5.6 here https://www.esahc.com/wx5.zip

Did you resolve this issue? If so, may I ask what was the cause?

Not yet, I will try today. I was on a business trip.

Just in case your problem is related:-

https://helpcenter.websitex5.com/ru/post/248798