mod versions
http://prntscr.com/qmfqq4

for example if i put a bucket of lava in a tank if does not update live. if i break and replace the tank it show lava in it. if a add a lava bucket to the generator it dose not gen any power. if u break a replace it show some power in it.

could not get past making steel to test more.

Sorry if this is bad

Been testing it.
Enigmatica 5, as a local host has this bug.
A dedicated server/client with only JEI+Mek does not have this issue

I released 9.9.2 and I believe it fixes this issue, so once you update you should verify if this is fixed, and either close this issue/say if it is fixed or not.

Replication steps has been found, for Enig5 and ATM5. Has to be some mod conflict, which I will look for later. Still not replicable in a Mek+JEI client/server. For now, the steps:

• Close client and server
• Delete usercache.json and usernamecache.json from the server folder
• Start server and client
• Test if you can put lava in a tank (answer should be No). The 2 json files should be recreated now
• Close server and client
• Restart server and client
• Test if you can put lava in a new tank (answer should be Yes)