Unfortunately, you still forgot to mention your Ranorex version. In you other post you mentioned 6.1. Please update it with the most recent 6.2 and check if it helps? The problem you are experiencing is definitely not normal Ranorex behaviour. Are you saving your solution at local disk or network one? Please be advised it's not recommended to save solutions to (or load them from) network/shared drives! Also, are you using an antivirus SW, which may block/interfere with saving solution files? And finally, are you using some kind of source code management tool (like SVN, TFS, GIT,...)? If not, you should immediately adopt one! It's critical to use such tools in the area of SW development. And developing automated tests with Ranorex is SW development like any other.
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