Tableview cells only displaying correctly on scroll up - ios

Question

I'm struggling with creating a tableview with custom, subclassed cells created in storyboards.
All the cells work well except the "questionCell". This cell only shows a fragment of its textfield (or sometimes none of it) until I scroll down and then back up again.
The initial appearance:
After scrolling down then up again:
Where am I going wrong?
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier1 = #"TextCell";
static NSString *CellIdentifier2 = #"QuestionCell";
static NSString *CellIdentifier3 = #"ImageCell";
NSInteger section = indexPath.section;
NSInteger row = indexPath.row;
UITableViewCell *cell = nil;
if (section == 0){
//the intro section
TextCell *textCell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier1 forIndexPath:indexPath];
textCell.labelText.text = _intro;
cell = textCell;
} else if (section == 4){
//this is the "the answer is . . ." section
TextCell *textCell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier1 forIndexPath:indexPath];
textCell.labelText.text = [NSString stringWithFormat:#"The only EOM to not be eliminated is %#",_theAnswer];
cell = textCell;
} else {
if (row == 0) {
NSString *item = [NSString stringWithFormat:#"question_%li", (long) section];
NSString *txt = [self valueForKey: item];
QuestionCell *qCell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier2 forIndexPath:indexPath];
qCell.questionText.text = txt;
cell = qCell;
} else if (row == 1) {
NSString *item = [NSString stringWithFormat:#"img_%li", (long)section];
NSString *img = [self valueForKey: item];
ImageCell *iCell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier3 forIndexPath:indexPath];
iCell.image.image = [UIImage imageNamed: img];
cell = iCell;
} else {
TextCell *textCell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier1 forIndexPath:indexPath];
NSString *item = [NSString stringWithFormat:#"explain_%li", (long)section];
NSString *txt = [self valueForKey: item];
textCell.labelText.text = txt;
cell = textCell;
}
}
return cell;
}
Here's heightForRowAtIndexPath. The results are the same if I just comment this out and set the heights in the prototype cells.
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
// Return NO if you do not want the specified item to be editable.
CGFloat hgt = 70;
if (indexPath.section == 0){
//the intro
hgt = 150;
} else if (indexPath.section == 4){
//the "answer is . . ."
hgt = 100;
} else {
if (indexPath.row == 1) {
//the image
hgt = 225;
} else if (indexPath.row == 2){
//the discussion
hgt = 180;
}
}
return hgt;
}
the questionCell just sets the iboutlet:
#import <UIKit/UIKit.h>
#interface QuestionCell : UITableViewCell
#property (weak, nonatomic) IBOutlet UITextView *questionText;
#end