Hello,
Before asking I checked the issue with different templates including Protostar.
The "Read more" button in the showcase module is 'cut' see image.
I tried something myself but I better keep insert content and ask you for issues like this
This is what I tried:
/*Easyblog showcase module readmore button*/
#ezblog-mod .showcase-button a, #ezblog-mod .showcase-button a {
height: 25px !important;
}