Calendar Bug: Vacation Dates Display Incorrectly for Some Users (iOS & Android)

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1

Hi everyone,

We’re experiencing a serious issue with our PTO manager app built in Glide. Our calendar is supposed to display employee vacation dates, but for some users (on both Android and iPhone), the calendar shows completely wrong days and duplicated/misplaced vacation bars.

Details:
This bug only happens for some users. For others, the calendar displays perfectly.

I’ve tried clearing cache, uninstalling/reinstalling the app, and even having users log in one by one (to avoid data overload). The issue persists for a few users.

No user-specific columns or row owners are set on the calendar data.

The bug appears on both mobile and web versions for affected users.I’ve attached screenshots:

1.	Correct calendar display
2.	Bugged calendar display on another device

This is creating a lot of frustration—would appreciate any advice or ideas!
Thanks in advance.

  1. Correct calendar view

    IMG_2025
    IMG_20251320×1804 150 KB

  2. Bugged calendar display on another device

    IMG_2024
    IMG_20241920×2560 335 KB

2

Are you using the Format Date column (or any other date manipulation column types) in your App?

3

Yes, I am using Format Date columns and some math/if-then-else columns that manipulate date values. I use these to show vacation start and end dates on the calendar, filter requests, and calculate the anniversary logic for vacation resets.

4

My guess would be that it is the Format Date column that is causing the problem. This column has been known for a long time to give inconsistent/unreliable results on some devices.

1 Like
5

I will give this a try.