This feature isn’t Available for recent android versions above Android 8, we are working on an alternative solution, but now you can copy the link and do it manually
Currently, Regram does not transfer the original people tags.
Instagram does not provide the “Copy Link” option for pictures belonging to Instagram private profiles.
If the caption (comment) disappears when you Regram a photo/video, it is probably because the number of hashtags goes over the limit when Regram adds the #Regram hashtag: “You can use up to 30 tags on a post. If you include …
Video repost/share speed varies depending on the video file size and network capacity. Therefore, to maximize speed, you should repost/share videos when on a strong WIFI network. If a video repost/share is taking too long, you can cancel it by …
Sometimes, your device stops background processes during standby mode. When this happens, just restart Regrann from the app icon. After that, you can use as usual.
Open the phone settings, select Apps->Instagram->”Set as Default” Then click the button “Clear Defaults”. Then try to repost another one manually and this time select the “Instagram” button not “Your Story”
Instagram has removed these menu items for some accounts. This may be temporary. For now, you can follow this method here :