Something tells me that it's better to play the campaign with Conflux enabled...
Do you have a licensed copy of the game?
If not, anything could happen with a pirated copy.
If it's a licensed copy, try playing with Conflux enabled so that your progress is saved and doesn't get reset.
Added 1 minute ago
However, it's unclear how you're using Dynasty weapons without Conflux.
It seems that we're actually talking about a cracked pirated copy...
Unfortunately.
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