Editing text in TextBox in TableLayoutPanel causes Bonsai to hang sometimes

[banchan86]

Description

Using a minimal workflow here:

The first string I type in the GUI that pops up when I double click on TableLayoutPanel is ok, but editing the text subsequently can sometimes hang Bonsai.

1. You do not need to save/stop the workflow, it can happen on the first run.
2. It does not always happen, sometimes I can get 1 or 2 edits in before it hangs. It's like a particular action (or character?) misconfigures the stream (not sure if I am using the right words here).

Steps to reproduce

I managed to isolate a reproducible example that worked on two different computers. On Bonsai 2.8.5 it just freezes and becomes unresponsive, on Bonsai 2.9 preview starting the workflow actually throws an unhandled exception that I was able to get a log from. Files attached.

To reproduce in Bonsai 2.8.5:

1. Start the workflow
2. Double click the TableLayoutPanel to bring up the textbox.
3. Select all the text in there
4. Type b and continue typing (should hang)

The attached workflow will crash every time.

Workaround

I have taken to clearing the textbox on every workflow run and making sure I just type the string as it is without messing around with it.

#2059_textbox_tablelayoutpanel_unhandled_exception.zip

[PathogenDavid]

Still need to look at the main issue more but:

Bonsai 2.9 preview starting the workflow actually throws an unhandled exception that I was able to get a log from.

This is maybe related to the generally broken behavior of visualizer mapping in 2.9: bonsai-rx/bonsai#2071