If you see the yellow bar "You agree with the Legal....", it means that the settings were zeroed.

It looks like a good practice to export and save our settings for any case.

In order to do it, we have to set "Minimum Net Profit" to 0 or more.

Until day before yesterday multimarket validation in the reactor validated strats, which were profitable on selected pairs, right? Currently every strat, which comes out of the generator gets validated in reactor's MM, even though they are not profitable on all selected pairs.

There is a Validation tab in the Multi Market page.

Click it and you will see the validation criteria for the Multi Market.

My point is strats, which do not pass multimarket test in the reactor, are validated. The MM tool shows on my screenshot that those should not be validated as they fail to produce profit on all selected markets. 2 days ago everything worked fine, I think my yesterday's generation in the reactor is invalid also. It is not normal to get more than a thousand generated strats in 10 minutes, which pass 6,7,8 different markets/currency pairs profitably. My screenshots show that those collected strats are not passing multimarket test, hence the MM validation in the reactor is not working. Sorry for not being more clearer earlier.

Click it and you will see the validation criteria for the Multi Market.

I did reload (F5) the app.

However, I noticed the same thing. Probably when I upload new version of the app, it resets the settings.
It must not be like that. I'll see how I can fix it.

You may also try the new Settings Export / Import.

Later I'll add saving the app settings on the cloud.

Please make a screenshot of the Multi Market settings.

Edit:

I just found out that the Settings reset deletes all Multi Market criteria instead of re-setting them. I'll fix it now.

I haven't touched settings, but the last days I have to set up generator settings, data horizon etc all from scratch every time I open the app, seems it can't save the settings anymore, maybe it's related.

Edit:

I just found out that the Settings reset deletes all Multi Market criteria instead of re-setting them. I'll fix it now.

Is it was the same Collection?

There is no reason for that. Internally The Reactor and the Validator are one sub program. The only difference is that the Reactor generates strategies but the Validator uses a strategy preset. They even share the same settings.

I'll make testes to try to reproduce the problem.

How do I test:

1. Clear the Collection
2. Set the Reactor time frame and Multi Market
3. Run the Reactor to create and push 69 strategies to the Collection
4. From the Collection page download the Collection or a Portfolio Expert.
5. Clear the Collection again.
6. Switch to Validator and drag/drop the previously exported collection (or Portfolio Expert)
7. Run the Validator
8. Exactly 69 strategies are pushed in the Collection

It appears it works as it is expected.

There is probably another reason for the behavior you have noticed. It can be different collection, different or newer data or different settings (Data Horizon, Trading Session ....)