When long pressing on the heart button to react to a post, it starts to highlight something.
A video to clarify:
Could be related to
this.
4 « J'aime »
Lilly
(Lillian Louis)
2
yea it’s doing something similar on my ipad 
6 « J'aime »
saquetim
(Sérgio Saquetim)
5
This issue should be addressed by:
6 « J'aime »
Lilly
(Lillian Louis)
6
excellent - the long tap is working perfect now! nice work 
3 « J'aime »