Tvheadend

Currently i'm running build 3.9.1236 on my Synology NAS
For some reason this version seems to feel a bit sluggish but that's not the main issue.

Since a long period now i have a lot of services that have Local channel number 0 and aren't working.
In fact i have multiple entry's for the same channel were the working one has a Local channel number.

Is there a way to dump those entry's from TVH database?

My provider tends to changes muxes/channels now and then which causes this effect. This generates a list of 700+ services but eventually only 300+ work.
It would be nice if TVH is be able to notice such changes and remap it to activated channels, if channel name is untouched.

Also noticed this error but going to update to 1281 now.
comet failure [e=Cannot set property 'innerHTML' of undefined]
comet failure [e=Cannot set property 'innerHTML' of undefined]