Hi Janusz,
Thank you for your feedback. I assume that it is Ctrl+Parrot 2 that you installed as a new plugin has been developed for the Anafi support.
As reported on the other threadby a user, the issue you experienced maybe hardware related.
I would not worry to use the Anafi with Pix4Dcapture. our different teams have spent a while testing it before the official support was released. It has been through the quality assurance process with success. Also, be aware that Pix4Dcapture is acting as a third-party application. It means that in case of unexpected behavior, you can take back manual control of the drone anytime.
Also would be interesting to see if you can reproduce this issue or if it occurs frequently. If you have the opportunity, I would also suggest you try another mobile device.
Best,