Gallery Block sometimes displays as one column despite multiple columns being set in the editor

[lakellie]

I was not able to reproduce this on a test site, but I ran into the same issue on two different user sites using two different themes today, so wanted to be sure to report it.

16511884-hc - AT site, Rivington theme
16506750-hc - Simple site, Gema theme

In both cases, the user reached out because the gallery was displaying as one left-aligned column instead of multiple columns. One user had theirs set to 3 columns, the other to 2.

In both cases, the galleries had markup in the HTML indicating they had been center aligned. If I un-selected the center alignment in the editor, and re-selected it again, this resolved the issue in both cases. Unfortunately since I can't replicate the problem I wasn't able to determine if this is Calypso-specific or a Gutenberg issue.

[kriskorn]

18627877-hc - AT Site, Swell theme.

[stale]

This issue has been marked as stale and will be closed in seven days. This happened because:

• It has been inactive in the past 9 months.
• It isn't a project or a milestone, and hasn’t been labeled `[Pri] Blocker`, `[Pri] High`, `[Status] Keep Open`, or `OSS Citizen`.

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