It has nothing to do to do with kodi 17.4, more to do with what you are using on kodi, so it is important that you keep abreast with what is happening of late with a lot of the regular addons that we are familiar with and how they are affected by recent happenings. Some of the ones we are aware of like Exodus, Salts,etc are no longer supported by their developers and are not been updated hence the reason for the problems been encountered. Look at alternatives like Covenant, Elysium etc going forward.