SIGNAL no longer sends SMS...after a random time

Hello,

Since several updates, I have difficulties with signal. After a certain time (random), signal no longer sends SMS. No worries for encrypted messages, but SMS are no longer sent. Sometimes a reboot of the phone is a solution, sometimes if i switch off /on SMS in the menu is a solution too… but this is not systematic. Often I must use the message app.

In the past, both by /e/ and by an android with google, I had no problem using signal for SMS

Am I the only one who has noticed this problem?

Samsung Galaxy S7, ver. dev : 0.7-20191025258406