Still unable to progress past Lvl 21

[centurionsofrome]

Still unable to research past level 21, and quite honestly I have no idea why. Here's an excerpt from my save file (is there a way to compress it?):
Time of excerpt: Dec 1946

Research0Prio=3

Research0ResearchPoints=115151

Research0TSL=75

Research0CurrentLevel=23

Research0Level0=1

Research0Level1=1

Research0Level2=1

Research0Level3=1

Research0Level4=1

Research0Level5=1

Research0Level6=1

Research0Level7=1

Research0Level8=1

Research0Level9=1

Research0Level10=1

Research0Level11=1

Research0Level12=1

Research0Level13=1

Research0Level14=1

Research0Level15=1

Research0Level16=1

Research0Level17=1

Research0Level18=1

Research0Level19=1

Research0Level20=1

Research0Level21=0

Research0Level22=0

Research0Level23=0

Research0Level24=0

Research0Level25=0

Research0Level26=0  
Research1Prio=3

Research1ResearchPoints=170645

Research1TSL=134

Research1CurrentLevel=21

Research1Level0=1

Research1Level1=1

Research1Level2=1

Research1Level3=1

Research1Level4=1

Research1Level5=1

Research1Level6=1

Research1Level7=1

Research1Level8=1

Research1Level9=1

Research1Level10=1

Research1Level11=1

Research1Level12=1

Research1Level13=1

Research1Level14=1

Research1Level15=1

Research1Level16=1

Research1Level17=1

Research1Level18=1

Research1Level19=1

Research1Level20=1

Research1Level21=0

Research1Level22=0

Research1Level23=0

Research1Level24=0

Research1Level25=0

Research1Level26=0  
Research2Prio=3

Research2ResearchPoints=117283

Research2TSL=55

Research2CurrentLevel=22

Research2Level0=1

Research2Level1=1

Research2Level2=1

Research2Level3=1

Research2Level4=1

Research2Level5=1

Research2Level6=1

Research2Level7=1

Research2Level8=1

Research2Level9=1

Research2Level10=1

Research2Level11=1

Research2Level12=1

Research2Level13=1

Research2Level14=1

Research2Level15=1

Research2Level16=1

Research2Level17=1

Research2Level18=1

Research2Level19=1

Research2Level20=1

Research2Level21=0

Research2Level22=0

Research2Level23=0

Research2Level24=0

Research2Level25=0

Research2Level26=0  
Research3Prio=3

Research3ResearchPoints=307970

Research3TSL=228

Research3CurrentLevel=24

Research3Level0=1

Research3Level1=1

Research3Level2=1

Research3Level3=1

Research3Level4=1

Research3Level5=1

Research3Level6=1

Research3Level7=1

Research3Level8=1

Research3Level9=1

Research3Level10=1

Research3Level11=1

Research3Level12=1

Research3Level13=1

Research3Level14=1

Research3Level15=1

Research3Level16=1

Research3Level17=1

Research3Level18=1

Research3Level19=1

Research3Level20=1

Research3Level21=0

Research3Level22=0

Research3Level23=0

Research3Level24=0

Research3Level25=0

Research3Level26=0