Wrong SIM card shown sending messages

[AndyM48]

Checklist

• [X] I can reproduce the bug with the latest version given here.
• [X] I made sure that there are no existing issues - open or closed - to which I could contribute my information.
• [X] I made sure that there are no existing discussions - open or closed - to which I could contribute my information.
• [X] I have read the FAQs inside the app (Menu -> About -> FAQs) and my problem isn't listed.
• [X] I have taken the time to fill in all the required details. I understand that the bug report will be dismissed otherwise.
• [X] This issue contains only one bug.
• [X] I have read and understood the contribution guidelines.

Affected app version

1.0.1

Affected Android/Custom ROM version

Android 9

Affected device model

Huawei y6 2019

How did you install the app?

F-Droid / IzzyOnDroid

Steps to reproduce the bug

1. '+' to start new message
2. Wrong flag is shown for SIM card

Expected behavior

Flag should show the SIM card number to be used to send the message

Actual behavior

Flag shows the wrong SIM card number

Screenshots/Screen recordings

No response

Additional information

I have two SIM cards: 1 12345678 2 87654321 SIM card 1 is set to default data and calls When I start a new message it shows a flag for 2, but the message is (correctly) sent through 1.

I think this is confusing.