Nisha0414

That means Texas service center is where the petition was first assigned.  USCIS may transfer the petition at any time.
 

It also happened to me, but after a while when I logged back in, It was fine.

My husband (USC) put in his CC at the end of the application. I think from reading this thread in earlier pages, a credit card from anywhere is good. 
 
If I’m incorrect I’m hoping someone can clarify. I think you will find out once you process the payment.

You're welcome!

The form is current. Proceed as normal is my understanding as it is the same form online even though that date is there the form has NOT expired.

Hello. I am also online filing and that is the continuation of question 8a-f of your last physical address outside the US of more than one year. 9a and 9b is asking for the start date and end date of your physical address.
 
HTH (hope that helps)
 
:)

We completed the form, my wife signed it, scanned it as a pdf and, there is a place to upload it during the process.

1. You can apply online from anywhere, imagine that someone could be with their spouse, this is very normal.
2. Nope, https://www.uscis.gov/forms/filing-fees/pay-with-a-credit-card
3. It's a digital signature
4. Read the guide, as well as the I-130 instructions
 

Yayyy congratssas :))))))))) so happy for u 

Yay @Nisha0414!! Do you know the date yet or not?

Yes, you need to show travel needs - a booked ticket. You have to take an appointment. Payment is 195 for the fastest. -Sam

I have a theory. I don't think that officers themselves choose to interview online filers first. It may be the case that the interview scheduling for online filers is automated and when an interview slot opens for a candidate whose 5th year green card anniversary has passed or will pass in next couple of weeks the system schedules an interview. For paper filers, an officer probably has to manually schedule an interview after checking the available dates after the fifth anniversary.  As officers have multiple cases to handle, they are not as fast in scheduling the interview as automated computer systems. In fact, even citizenship interview officers are often surprised by how fast the online interview scheduling is as has been corroborated by various online filers and also was my case.
 
If you observe various cases, there is a definite pattern. Given the same district office and similar circumstances, the fastest interview scheduling is for online filers whose 5th year green card anniversary has either passed by the biometric date or will pass within a couple of weeks. In fact, I saw a case few months ago where an online filers interview was scheduled just a day after biometric.  His biometric was after the 5th year anniversary.
 
I am of course speculating here after observing various cases. I can be completely wrong.

It is one of the flaws of USCIS.

Yes, not filing online is making the process take longer. That's not surprising with the amount of overhead that is removed when there's no paper to move around! 
There are status tables in this thread and all of the other case filing reports thread, you can get a good idea of the average time it will take for your office with those. You can also use some of the VisaJourney tools to look at that as well, though they're a bit convoluted and not very user friendly.