is there a way to limit the price variation?

I have a save attached where there is just a little bit of track and some signals and the crash will happen when the train goes past a set of signals on a junction next to a station.

Here is a blueprint for testing just build the blueprint and set the train in the build to auto and want crash will happen every time 0eNqVnP9uGjkUhV9lNX9DNL7+MXYeoC+xilY0zKajEoiARFtVvPsODSEkMfAdqVGTNnwYXx/bc8+1fzffF8/903pYbpvb381wv1pumtu/fzeb4WE5W+z/bfvrqW9um2HbPzaTZjl73P+0ng2LZjdphuW8/6+5dbu7SdMvt...

Steps to repeat this crash are as follows.
1. load mod portal
2. install new mod
3. refresh mod portal
4. before mod portal finished refreshing click back
5. experience crash