Birthdays are shown twice

[SecJoe]

Hey,

my Birthday Calendar App shows birthdays twice or sometimes three times. I have an HTC10 with Android 8. I have already disabled all accounts in the Account-Filter tab with no success.
Has anyone a solution or is this a bug in this app for newer Android versions?

[Sunny2102]

Ich haber genau das gleiche Problem. Ich lösche Kalenderdaten, Cache, deinstalliere BCA, installiere die APP neu, aktualisiere alles und es funktioniert gut. Nach ein paar Wochen tauchen doppelte Geburtstage auf.

[Sunny2102]

I have exactly the same problem, clean up everything and some Weeks later duplicated birthdays apear. Moto G 1st generation, Android 5.1.

[t-men]

Having this problem too. Goes away when i hit 'Refresh' in google calendar app. On Motorola Moto G5 plus, Android 7.

[YouDoMeIDoYou]

Same probleme here. Disappears when refreshing in Etar. On Moto G2 Titan, Unofficial LineageOS 16.0

[regagain]

Same for me. Samsung Galaxy S10e, Android 10.

[ljrk0]

Some apps such as Threema expose their own contact DB and include the birthday even if the birthday isn't stored in the Threema contact, effectively duplicating entries, similar to #94

The solution is to deselect Threema (or whatever app is causing the issue) in the Account Filter setting of Birthday Adapter. Perhaps this could be added to the FAQ.