The mod Quick Map Tag Teleport (0.2.71) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event QuickMapTagTeleport :: on_chart_tag_modified (ID 160)
QuickMapTagTeleport /scripts/gui/qmtt.lua:130: bad argument #1 of 2 to
'pairs' (table expected, got nil)
stack traceback:
[C]: in function 'pairs'
QuickMapTagTeleport /scripts/gui/qmtt.lua: 130: in function
'handle_chart_tag_modified'
QuickMapTagTeleport /control.lua: 176: in function
QuickMapTagTeleport __ /control.lua: 175>

This happened as I was trying to create a tag on the map. A similar problem occured the other day when I tried to move a tag.
(love this mod btw)

I couldn't recreate, but I put in a few more safeguards in 0.2.72
Please let me know how it goes in the next release (coming within the hour).

Were you trying to create a tag via the "Add Tag" button method or were you right-clicking?

I updated, no crash when setting a tag.
Thank you very much for the quick fix!