every single logEvent console logging "invalid properties format" in v4.5.1

[katsumeshi]

v4.5.0 doesn't log like following, but v4.5.1 does

amplitude.js:2085 [Amplitude] Error: invalid properties format. Expecting Javascript object, received null, ignoring

[nikchanda]

I had the same issue. It is caused by the validateProperties call on line 7626 in amplitude.js. Specifically, groupProperties is null so it throws the error. The other properties objects (e.g. eventProperties, userProperties, groups) have a sanity check above this to set null values to empty objects, but thee groupProperties does not. This causes the event constructor to try and load a null fr groupProperties.

Can be resolved by adding this before line 7602:
groupProperties = groupProperties || {};

[djih]

@katsumeshi @nikchanda thanks for reporting, and apologies for the issue, we'll have a fix going out soon

[nikchanda]

I submitted a pull request with a recommended patch.

[djih]

@katsumeshi @nikchanda thank you for your patience, we have released v4.5.2 with the fix: https://github.com/amplitude/Amplitude-JavaScript/releases/tag/v4.5.2

[nikchanda]

Great. Thank you!