Solved Import from M2 will only import mails for two accounts

[Jaws]

Dear Vivaldi Team,
unfortunately M2 import is still kinda broken.
Google announced that they will disable user authentication only access at the end of May so starting with June M2 will become useless, making it necessary to now finally being able to migrate all mails to Vivaldi Mail.

Currently there is (as far as I can tell) one remaining blocker issue - I have also reported this via VB-84906.

I have six mail accounts in M2 (I also exported these as mbox and reimported them into new accounts to rule out any legacy issue with these old accounts) which I want to import to Vivaldi Mail.
Selecting all 6 accounts to import results in the accounts themselves being created.
However, the import of the mails aborts after the second account. The other accounts remain empty:

Deleting and importing these again shows the same issue - accounts get created, no mails are imported.
I tried all different way I could think of, I can't get Vivaldi Mail to import mails into more than two mail accounts.

This behavior started with Vivaldi 5.0 - earlier versions imported all accounts (but there were other issues with the import back then, these were fixed with 5.0

I would very much appreciate a fix for this.
Thanks!

[Jaws]

I'm glad to report that the above described issue appears to be resolved with snapshot 2603.6 (probably via VB-85851)
Thanks Vivaldi!
Now looking forward for this to reach a stable release and then that's it for M2. Sigh and yay.

[jumpsq]

I want to add most of my reports for import issues here (not sure if any of them have been resolved):

M2 import

• (VB-78024) Import not comprehensive (mails are missing, concrete case may be resolved)
• (VB-82314) Mail import fails (still on some mails from M2)

Thunderbird import

• (VB-85923) [TB Import] Some messages missing (this report and its follow-up message should be rather informative)
• (VB-85926) [Mail] Import TB: Messages where From and To match are sorted into trash after import (possibly resolved)
• (VB-86479) TB Import messes up unicode (message content changes after import, example .EML-files included)

Note that I have not tried to import multiple accounts in a long time, but it also got stock in the very first M3 iteration for me when I did, and then import ran continuously.

@lukaszj has also reported missing mails after import from M2 (VB-87295)

[Jaws]

I'm glad to report that the above described issue appears to be resolved with snapshot 2603.6 (probably via VB-85851)
Thanks Vivaldi!
Now looking forward for this to reach a stable release and then that's it for M2. Sigh and yay.