New application disconnects old ones



I have 8 applications under one account. Each app has its own purpose and objectives (research only) and since there is no limit in number of applications we decided to dedicate each project to each application.

I used to connect all 8 apps at the same time and do what I want to do (Node.js etc.) like track by keywords, locations ,etc. But lately when I connect the 4th one the others will be ended. It is like I can have more than 4 apps used at the same time. I tried different machines. So it is not a limit on one machines and it is definitely something from Twitter side.

Is there a new limit on number of apps under one account that can be used at the same time? Because it has not been a problem for a long time.