Hi,
On both cs cart multivendor and store builder 4.19.1SP tabs can be expanded but not collapsed back. It needs to be done both ways.
On mobile emulator I am seeing this error
Hello!
I have failed to reproduce this issue on the mobile with product tabs “Reviews” and “Product Description”. Could you please provide some additional details if you have any?
I tried on my samsung note 8 mobile, on iphone and also on mobile emulator and reproduced every time the issue