Send Later popup window gets narrower each time it is used

[epsso]

Prerequisites

• I am reporting a problem, not asking a question (for questions, go to Discussions).
• I have consulted the user guide.
• I have confirmed that I'm running the current version and the problem persists there (note the version number in fine print next to the add-on name on addons.thunderbird.net and compare it to the version number listed in the add-on details opened from the Add-ons page in Thunderbird; if you've got an old version, click the gear icon and select "Check for Updates").
• If I'm having an issue with date-parsing confusion, I've read the section about that in the user guide and I still think this is something different.
• If I'm having an issue with messages not being delivered, I've followed the troubleshooting steps in the user guide and it's still an issue.

Describe the bug

Every time use send later to send a message the "send at" popup window gets slightly narrower.

How to reproduce

1. send a message later using send later
2. From the drafts folder select the same message and send it again.
3. repeat Migrate translations #2 over and over again

Expected behavior

No response

Additional context

No response

Operating System

Windows

Operating System Version

10.0.19045 Build 19045

Thunderbird version

115.9.0 (64-bit) R

Send Later start-up string

Send Later version 10.4.0 on Thunderbird 115.9.0 (20240314154241) [win x86-64] UI locale en-US, Date Locale en-US

[epsso]

1st send

7th send

11th send

16th send

[jikamens]

Thanks for reporting. This is certainly annoying! I apologize.

I can't reproduce this on Linux, so I suspect it's a Windows issue. It would seem that TB isn't accurately reporting the size of the window to Send Later, or there's a mismatch between the window size when reporting vs. then window size when setting.

I will investigate further as time permits; can't do it at the moment, unfortunately.

[mlana]

i had the same problem on MacOS 14.4.
i deleted the extension and reinstalled it and it is working without getting narrower.
(i actually am keeping the intermediate warning window if you click "send now" etc.
i will try to see if after getting rid of it the right behaviour continues)

[JimCarls]

Same issue here (Window 10, v 19045.4291), but it seemed to start suddenly, a couple of months ago, and was immediately displayed at about half the normal width and the full height of the screen. I don't remember seeing or installing a Send Later update, so it does sound like a Thunderbird issue that needs coordination.

[RMC-99]

Same issue. Windows 11 Pro, Send Later version 10.6.0.
Reinstalling Send Later seems to have fixed the narrowing, thank you.

[OndrejFilip74]

Same problem. Win 10. Reinstalling the program did not help.

[epsso]

I am now on SL 10.6.0 with TB 128.2.3esr 64-bit with Windows 11 and the issue that that I reported no longer exists.